The current in a circuit follows the relation i = 100sin?t. If frequency is 25 Hz, how long will it take for the current to rise to 50 A ? a.) 1 ms. b.) 3.33 ms. c.) 10 ms. d.) 20 ms.

Asked by Last Modified  

9 Answers

Follow 7
Answer

Please enter your answer

i= sin wt f= 25 HZ w= 2×pi×f t=? 50=100 sin wt 50=100 sin (2×180×25) t 50/100= sin 9000 t 1/2=sin 9000 t Sin-' (1/2)= 9000t sin -' (1/2)=30 30= 9000 t t = 30/9000 t = 1/300 = 3.33 ms.
read more
i= sin wt f= 25 HZ w= 2×pi×f t=? 50=100 sin wt 50=100 sin (2×180×25) t 50/100= sin 9000 t 1/2=sin 9000 t Sin-' (1/2)= 9000t sin -' (1/2)=30 30= 9000 t t = 30/9000 t = 1/300 = 3.33 ms. read less
Comments
Dislike Bookmark

Specialization in Organic Chemistry. Teaching Chemistry has always been my passion.

B) 3.33 ms
Comments
Dislike Bookmark

Headstart to assured 95+ score in math

Please repost the query
Comments
Dislike Bookmark

Power To Teach

50=100sin(2pi25) t after solving we get t=3.33ms
Comments
Dislike Bookmark

Trainer

Solution: i = 100 sin(wt) 50=100 Sin(wt) wt = Arc Sin(1/2)= pi/6 radians but w = 2 pi 25hz= 50 pi wt = 50 pi t= pi/6 t= pi/6w= pi/( 6 x 50 pi) = 3.36 ms
Comments
Dislike Bookmark

Don't want to over express myself, just join and feel the experience.

b
Comments
Dislike Bookmark

PHYSICS MENTOR

3.33ms
Comments
Dislike Bookmark

Physics Projectile

3.33ms, as for I to be 50A sinwt needs to be half..
Comments
Dislike Bookmark

B
Comments
Dislike Bookmark

View 7 more Answers

Related Questions

How much shall I charge for Physics of 11th and 12th for home tuition in Dwarka , New Delhi?
400/hr
Aakansh
0 0
7
The property of self - linking of carbon atoms in long chain is called...?
Catenation
Kumar Upendra Akshay
A box contains 12 balls out of which 7 are red and rest are green. In how many ways can a random sample of 8 balls be drawn from the bag so that at the most 3 red balls are included in the sample and no sample has all the 8 balls of the same colour?
7C3*5C5 =( 7!/3!*(7-3)! ) / 1 = 7*6*5*4! /3!*4! = 7*5 =35
Vikna
Is a partner entitled to salary if he works more than others if partnership deed is silent?
No partner is entitled to a salary if Partnership Deed is silent on it. It doesnt make any difference if he works more than others, if Partnership Deed is silent on it.
Raindial
0 0
5
An electromagnetic wave electric and magnetic fields are __________. (Parallel to each other, Perpendicular to each other,Opposite to each other, None of these)
perpendicular to each other
Narendra Kumar

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Learn the basic .
Always try to start from core and basic . build your Weaker subject more stronger and Stronger one your strength.

Sumantra Satyarthi

0 0
0
Escalation Clause in contract costing.
Meaning: In Fixed Price Contracts, the contract price is fixed and pre-determined. If there is an increase in prices of materials, rates of labour etc. during the period of execution of a contract,...

Fr Prashanth Reddy

Basic Concepts Of Income Tax
Q: What is Tax ? Ans : It is an Amount which is payable by a person to the government so that govt can meet out of its certain expenses for which directly there are no charges. For Example: Defense,...

Fr Prashanth Reddy

Measuring astronomical distances
One of the areas of physics in which measurement has been bewildering is astronomy. How far away are the stars? How large is the universe? These are the most fundamental and profound questions. One can...

Nawlendu Bhushan

0 0
0
Introduction To Accounting: Part 1: Need For Accounting
Whenever we start doing business, a number of transactions take place. For example, if we start a business of say, a book store (i.e. we’ll be buying books from wholesalers and publishers, and selling...

Nishant Kumar

0 0
0

Recommended Articles

Meet Sandhya R, a B.Sc tutor from Bangalore

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Meet Urmila, an MBBS tutor from Bangalore

Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition.  Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...

Read full article >

Meet Radhe Shyam Burman, an MBA Tutor from...

Radhe Shyam is a highly skilled accounts and finance trainer with 8 years of experience in teaching. Accounting is challenging for many students and that’s where Radhe Shyam’s expertise comes into play. He helps his students not only in understanding the subject but also advises them on how to overcome the fear of accounts...

Read full article >

Find Class XII Tuition near you
Class XII Tuition in Delhi
Class XII Tuition in Bangalore
Class XII Tuition in Hyderabad
Class XII Tuition in Chennai
Class XII Tuition in Kolkata
Class XII Tuition in Mumbai
Class XII Tuition in Pune
Class XII Tuition in Lucknow
Class XII Tuition in Noida
Class XII Tuition in Gurgaon
Online Tuition Class 12

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you