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Anshul 22 Mar in  GATE Coaching classes

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Siddharth replied | 18 Apr

It is Rs. 72000.

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Utkarsh replied | 20 Apr

It depends on what mode of course you are taking.
If you want to do classroom coaching then it may cost a min. of Rs. 50k.
If you want to do online coaching then it may cost you a min. of Rs. 30k - 35k.

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Ankit 14/12/2016 in  GATE Coaching classes, Electrical(GATE Coaching classes), Mechanical(GATE Coaching classes)

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Suraj replied | 10 Jan

If your basics are strong, just go through all important concepts once again and solve most of previous years questions.

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Anil replied | 11 Jan

All you need to do is focus on writing as many mock tests as possible. Please plan each and every hour in a day. For the first 15 days revise the topics of each subject as much as possible, review formulas, concepts, shortcuts and then go for topic wise, subject wise and all India mock tests. You'll get to know where you stand, accordingly you can still push your limits. Last month...  more»
All you need to do is focus on writing as many mock tests as possible. Please plan each and every hour in a day. For the first 15 days revise the topics of each subject as much as possible, review formulas, concepts, shortcuts and then go for topic wise, subject wise and all India mock tests. You'll get to know where you stand, accordingly you can still push your limits. Last month of preparation is crucial for every aspirant of GATE. So, its time for revision of topics and writing as many online mock tests as possible. Hope this helps, thank you. «less

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Uma 25/11/2016 in  GATE Coaching classes, Architecture and Planning(GATE Coaching classes)

Hi, I am an architecture student doing my fourth year now. I am confused as to what to do after architecture. I want some advice. If I do project management, how will that help?

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Hussam Uddin replied | 25/11/2016

Do M.Arch and go for teaching as Assistant professor.

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Meenu Ranka replied | 25/11/2016

Hi Uma,
I suggest you not to take up project management as it'll keep you away from designing.
Instead there are various options like landscaping, conservation, urban design which are related to architecture.
You can select anyone that you think you are interested in.
I hope I've been of help.
Good luck dear.

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Pradeep replied | 15/12/2016

Speed= (8+6+16)/(3/4)= 30*4/3 = 40 km/h.

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Sunil replied | 15/12/2016

Avg Speed = Total Distance/Total Time
=> (8+6+16)/(0.25+0.25+0.25) =40 kmph.

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Sheekha 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is the overall impulse response of the cascaded system if the two systems with impulse h1(t) and h2(t) are connected in cascade?

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Arindam replied | 04/12/2016

h1(t) * h2(t).

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Rishabh replied | 08/12/2016

In time domain,
h1(t)*h2(t).
In s domain,
H1(s).H2(s).

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Vikas 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is the fundamental frequency in rad/s for a periodic signal v(t) = 30 sin 100t + 10 cos 300t + 6 sin(500t + pie / 4)?

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Sathyaprakash replied | 02/12/2016

100 rad/s.

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Rishabh replied | 08/12/2016

LCM of 100, 300 & 500 which is 1500.
No effect of phase shift pie/4.

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Veerendra 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

In a huge pile of apples and oranges, both ripe and unripe mixed together, 15% are unripe fruits. Of the unripe fruits, 45% are apples. Of the ripe ones, 66% are oranges. If the pile contains a total of 59620 fruits, how many of them are apples?

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Rishabh replied | 09/12/2016

59620*0.15*0.45 + 59620*(1-0.66)*0.85.

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Santosh replied | 13/12/2016

21254

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Palak 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is the eligibility criteria for appearing GATE exam?

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Sunil replied | 14/12/2016

(B.Tech)Engineering degree or BCA+MCA.

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M Balal replied | 15/12/2016

Graduation in Engineering or Concern Subjects.

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Ananya 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What do you mean by impedance?

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Sourav Kumar Singh replied | 05/12/2016

Impedance is a vector (two-dimensional)quantity consisting of two independent scalar (one-dimensional) phenomena: resistance and reactance.

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Sourav Kumar Singh replied | 05/12/2016

Resistance is a measure of the extent to which a substance opposes the movement of electrons among its atoms.The more easily the atoms give up and/or accept electrons, the lower the resistance, which is expressed in positive real number ohms.
Reactance, denoted X, is an expression of the extent to which an electronic component, circuit, or system stores and releases energy as...  more»
Resistance is a measure of the extent to which a substance opposes the movement of electrons among its atoms.The more easily the atoms give up and/or accept electrons, the lower the resistance, which is expressed in positive real number ohms.
Reactance, denoted X, is an expression of the extent to which an electronic component, circuit, or system stores and releases energy as the current and voltage fluctuate with each AC cycle. Reactance is expressed in imaginary number ohms.It is observed for AC, but not for DC.When AC passes through a component that contains reactance, energy might be stored and released in the form of a magnetic field, in which case the reactance is inductive (denoted +jXL); or energy might be stored and released in the form of an electric field, in which case the reactance is capacitive (denoted -jXC). Reactance is conventionally multiplied by the positive square root of -1, which is the unit imaginary number called the j operator, to express Z as a complex number of the form R + jXL (when the net reactance is inductive) or R - jXC (when the net reactance is capacitive). «less

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Thinagaran 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is discrete signal?

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Sunil replied | 14/12/2016

It is a time series that is a function over a domain of integers. Unlike a continuous-time signal, a discrete-time signal is not a function of a continuous argument.

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M Balal replied | 15/12/2016

In a discrete-time signal, the number of elements in the set, as well as the possible values of each element, is finite, countable, and can be represented with computer bits, and stored on a digital storage medium.

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Manish 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

Place an appropriate phrase: Frogs ________ ?

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Chetan Gandhi replied | 03/12/2016

Croak.

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Sourav Kumar Singh replied | 05/12/2016

are afraid of snakes.

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Pradeep 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is the characteristics of pn junction?

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Srujan replied | 15/12/2016

Pn junction has p- type and n-type two substrates connected forming a depletion layer because the majority carriers in them are different. It is used as a diode as forward biased or reverse biased.

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Arindam replied | 15/12/2016

It has rectifying capability. It provide very low resistance for current in one direction and restrict flow of current in the opposite direction.

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Madhavan 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

A region of negative differential resistance is observed in the current voltage characteristics of a silicon pn junction if____________ ?

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Shantanu replied | 22/11/2016

Both the P-region and the N-region are heavily doped.

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Er.Sukhwinder replied | 27/11/2016

Both the p-region and n-region are heavily doped.

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Kartheek 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is the value of k for which the system has infinitely many solution:
x + 2 y + 3 z = - 1
x + 3 y + 4 z = 1 and
2 x + 4 y + 6 z = k?

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Pradeep replied | 15/12/2016

-2.

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Kishore replied | 15/12/2016

k= - 2.

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Rajesh 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is the difference between the low - pass signal and band - pass signal?

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Reneeta replied | 27/11/2016

A low pass signal is a signal which has lower frequency very close to zero or zero. The signal can have a maximum frequency (f) till which the frequency spectrum extends. A band pass signal consists of a frequency band in which the lower frequency is much higher than zero frequency.

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M replied | 28/11/2016

Signal with low frequency that pass through low pass filter and signal with medium frequency that pass through band pass filter.

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Murugan 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the first floor. The bulb can be turned OFF by any one of the switches irrespective of the state of the other switch. Then what is the logic of switching of the bulb resembles?

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Santosh replied | 13/12/2016

X -NOR.

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Pankaj 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

In a forward biased pn junction diode, the sequence of events that best describes the mechanisms of current flow is____?

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Er.Sukhwinder replied | 24/11/2016

Injection and subsequent diffusion and recombination of minority carriers.

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Mridulika 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What type of gas produced when the IC technology, dry oxidation as compared to wet oxidation?

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Vikas replied | 30/11/2016

In dry oxidation no gas is produced.
In Wet Oxidation Hydrogen gas is produced.
Wet Oxidation:-
It is a form of hydro thermal reaction. The oxidation is done by involving the dissolved components in H2O with oxygen as a oxidizer.
The chemical reaction is:
Si + 2 H2O -> SiO2 + 2H2
Dry Oxidation:-
Dry oxidation has lower growth rate than wet oxidation,...  more»
In dry oxidation no gas is produced.
In Wet Oxidation Hydrogen gas is produced.
Wet Oxidation:-
It is a form of hydro thermal reaction. The oxidation is done by involving the dissolved components in H2O with oxygen as a oxidizer.
The chemical reaction is:
Si + 2 H2O -> SiO2 + 2H2
Dry Oxidation:-
Dry oxidation has lower growth rate than wet oxidation, although the oxide film quality is better.
The chemical reaction for Silicon and Oxygen is:-
Si + O2 -> SiO2. «less

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Test 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What do you mean by divergence of vector?

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Vikas replied | 09/12/2016

In vector calculus, divergence is a vector operator that produces a signed scalar field giving the quantity of a vector field's source at each point. More technically, the divergence represents the volume density of the outward flux of a vector field from an infinitesimal volume around a given point.
As an example, consider air as it is heated or cooled. The velocity of the...  more»
In vector calculus, divergence is a vector operator that produces a signed scalar field giving the quantity of a vector field's source at each point. More technically, the divergence represents the volume density of the outward flux of a vector field from an infinitesimal volume around a given point.
As an example, consider air as it is heated or cooled. The velocity of the air at each point defines a vector field. While air is heated in a region, it expands in all directions, and thus the velocity field points outward from that region. The divergence of the velocity field in that region would thus have a positive value. While the air is cooled and thus contracting, the divergence of the velocity has a negative value.
In physical terms, the divergence of a three-dimensional vector field is the extent to which the vector field flow behaves like a source at a given point. It is a local measure of its "out goingness"– the extent to which there is more exiting an infinitesimal region of space than entering it. If the divergence is nonzero at some point then there must be a source or sink at that position. «less

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Santosh replied | 13/12/2016

Divergence of vector indicates how much resultant vector quantity diverges or converges a given volume. For example water flowing in a pipe per cubic centimeter is the best example of divergence.

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Meenakshisundarams 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is the sampling frequency if a band limited with a maximum frequency of 5kHz is to be sampled?

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Sushil replied | 25/11/2016

2*5 kHz = 10 kHz.

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K 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

How many roots does a polynomial has: f(x) = a2 (square of x) + a0 with all positive coefficients?

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Rishabh replied | 08/12/2016

Both roots have imaginary coefficient.
One is positive, other is negative.

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Ashwin 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is the value of accumulator at the end of program for 8085 microprocessor if the program is executed:
MVI A, 05H;
MVI B, 05H;
PTR: ADD B;
DCR B;
JNZ PTR;
ADI03H;
HLT;?

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Sushil replied | 22/11/2016

17H

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Ms 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is the value of fundamental frequency in rad/sec, for a periodic signal: v(t) = 30 sin 100t + 10 cos 300 t + 6 sin (500 t + pie / 4)?

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Santosh replied | 13/12/2016

100 rad/sec.

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Alifiya 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What is the minimum bandwidth required for ISI free transmission if the modulation used is 32 QAM?

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Sushil replied | 22/11/2016

2 * 5* 4 = 40Kbps

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Er.Sukhwinder replied | 27/11/2016

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If the bit rate of the digital communication system is 'R' Kbps & the modulation used is 32-QAM, what is the minimum bandwidth required for ISI free transmission?
My understanding & analysis so far:
QAM (a digital-to-analog conversion technique) is a combination of ASK & PSK. The idea behind QAM is to alter two characteristics (amplitude...  more»
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If the bit rate of the digital communication system is 'R' Kbps & the modulation used is 32-QAM, what is the minimum bandwidth required for ISI free transmission?
My understanding & analysis so far:
QAM (a digital-to-analog conversion technique) is a combination of ASK & PSK. The idea behind QAM is to alter two characteristics (amplitude & phase) instead of just one to improve the bit rate.
From literature (Data Communications & Networking by Forouzan), the minimum bandwidth required for QAM is same as that of ASK/PSK.
BW for Binary ASK is given by B = (1+d)S, where S is the signal rate.
For 32-QAM bandwidth is:-
B = S = (bit rate)/(bits per signal element) = R/5 KHz
(for 32-QAM no. of symbols per signal element is log2(32) = 5) «less

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Ankan 19/11/2016 in  GATE Coaching classes, Electronics & Communication(GATE Coaching classes)

What do you mean by LTI system?

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Gateforum replied | 08/12/2016

Linear time-invariant theory, commonly known as LTI system theory, comes from applied mathematics and has direct applications in NMR spectroscopy, seismology, circuits, signal processing, control theory, and other technical areas.

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