Find the best tutors and institutes for Class 12 Tuition
Electromagnetic Induction EXERCISES Solutions
- Q6.1(a): Predict the direction of induced current in the situation described by the following Fig. 6.15(a).
- Q6.1(b): Predict the direction of induced current in the situation described by the following Fig. 6.15(b).
- Q6.1(c): Predict the direction of induced current in the situation described by the following Fig. 6.15(c).
- Q6.1(d): Predict the direction of induced current in the situation described by the following Fig. 6.15(d).
- Q6.1(e): Predict the direction of induced current in the situation described by the following Fig. 6.15(e).
- Q6.1(f): Predict the direction of induced current in the situation described by the following Fig. 6.15(f).
- Q6.2(a): Use Lenz’s law to determine the direction of induced current in the situations described by Fig. 6.16: A wire of irregular shape turning into a circular shape;
- Q6.2(b): Use Lenz’s law to determine the direction of induced current in the situations described by Fig. 6.16: A circular loop being deformed into a narrow straight wire.
- Q6.3: A long solenoid with 15 turns per cm has a small loop of area (2.0 cm^{2}) placed inside the solenoid normal to its axis. If the current carried by the solenoid changes steadily from 2.0 A to 4.0 A in 0.1 s, what is the induced emf in the loop while the current is changing?
- Q6.4(a): A rectangular wire loop of sides 8 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0.3 T directed normal to the loop. What is the emf developed across the cut if the velocity of the loop is (1 cm s^{-1}) in a direction normal to the longer side of the loop? For how long does the induced voltage last in each case?
- Q6.4(b): A rectangular wire loop of sides 8 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0.3 T directed normal to the loop. What is the emf developed across the cut if the velocity of the loop is (1 cm s^{-1}) in a direction normal to the shorter side of the loop? For how long does the induced voltage last in each case?
- Q6.5: A 1.0 m long metallic rod is rotated with an angular frequency of (400 rad s^{-1}) about an axis normal to the rod passing through its one end. The other end of the rod is in contact with a circular metallic ring. A constant and uniform magnetic field of 0.5 T parallel to the axis exists everywhere. Calculate the emf developed between the centre and the ring.
- Q6.6(a): A horizontal straight wire 10 m long extending from east to west is falling with a speed of (5.0 m s^{-1}), at right angles to the horizontal component of the earth’s magnetic field, (0.30 \times 10^{-4} Wb m^{-2}). What is the instantaneous value of the emf induced in the wire?
- Q6.6(b): A horizontal straight wire 10 m long extending from east to west is falling with a speed of (5.0 m s^{-1}), at right angles to the horizontal component of the earth’s magnetic field, (0.30 \times 10^{-4} Wb m^{-2}). What is the direction of the emf?
- Q6.6(c): A horizontal straight wire 10 m long extending from east to west is falling with a speed of (5.0 m s^{-1}), at right angles to the horizontal component of the earth’s magnetic field, (0.30 \times 10^{-4} Wb m^{-2}). Which end of the wire is at the higher electrical potential?
- Q6.7: Current in a circuit falls from 5.0 A to 0.0 A in 0.1 s. If an average emf of 200 V induced, give an estimate of the self-inductance of the circuit.
- Q6.8: A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0 to 20 A in 0.5 s, what is the change of flux linkage with the other coil?
Chapters in CBSE - Class 12 Physics
- Electric Charges and Fields
- Electrostatic Potential and Capacitance
- Current Electricity
- Moving Charges and Magnetism
- Magnetism and Matter
- Alternating Current
- Electromagnetic Waves
- Ray Optics and Optical Instruments
- Wave Optics
- Dual Nature of Radiation and Matter
- Atoms
- Nuclei
- Semiconductor Electronics
- Communication Systems
Top Tutors who teach Electromagnetic Induction
Top Tutor
Tagore Garden, Delhi
5 yrs of
Exp
15 students
249 hrs of classes completed
500
per hour
Online Classes
I,Mridula Das from Delhi ama professional Psychology teacher. I coach XI and XII grade CBSE students. I holds a Masters degree in Psychology and a B.Ed degree, and have also completed my MBA in Human Resources Management. Further ,I hold a PG Diploma in Guidance and Counselling. I have been teaching for the past 3 years in schools in West Delhi, and have guided 25-30 students per batch. According to my teaching style, I keep my class interactive and responsive and incorporate several visual aids in teaching. As a psychological expert, I understands student's minds set better and charters her teaching style accordingly. I teaches ,both online and offline classes as well.
Mridula ma'am is an excellent psychology teacher. What I loved most about her teaching style is that she always used really relatable and easy to understand examples to explain concepts, which made even the difficult topics feel simple. Her dedication and patience truly make her stand out as a teacher.I was able to score well, thanks to her guidance.
Super Tutor
Besant Nagar, Chennai
20 yrs of
Exp
23 students
745 hrs of classes completed
750
per hour
Online Classes
am geetha, from Chennai, a very dedicated and sincere professional from my end and I ensure that it is inculcated and reciprocated by the students as well. I have been in the teaching field since 2005 after my master's. I have tutored more 350 students in various batches and have boosted their confidence in Math, making the subject enjoyable for them. All of my past students have passed in flying colors and are flourishing in their professional careers now My class will be focused on strengthening the basic concepts and foundation that is essential to break down complex problems by using simple methods. I focus on clearing all the doubts step by step and conducting test papers after the completion of every lesson which will make it easier for the students to crack their school quarterly, half-yearly, and final exams with ease. Thank you, best regards from geetha Kumar.
Geetha Ma'am explains well and is ready to clear doubts. So far the experience has been very good and helpful to us.
Top Tutor
Vimanapura Krishna Nagar, Bangalore
7 yrs of
Exp
6 students
666 hrs of classes completed
700
per hour
Online Classes
Student's Home
In this competitive world education is the most important tool rather I say that it is sword by which one can win the competition.so I am in this field from last four years and teaching is my passion and even strength.My students are very happy with me in college as well as in tutions. Their results show it all. Students are always been encouraged to do studies one should not force them for the same.
Top Tutor
Rajpur Sonarpur, Kolkata
1 yrs of
Exp
2 students
152 hrs of classes completed
400
per hour
Online Classes
I am a teacher of Psychology and other social science subjects. I am giving online video tuition classes at affordable rates. I have a Master's degree in Psychology from Banaras Hindu University and am currently pursuing my PhD. I have also qualified UGC-NET in Psychology.
Top Tutor
Sakinaka East, Mumbai
5 yrs of
Exp
1 student
31 hrs of classes completed
1500
per hour
Online Classes
Student's Home
PHYSICS TUTORING WITH A PHYSICS EXPERT: STRATEGIES THAT MAKE SENSE FOR YOU! ABOUT SUBJECT Students will receive personalized instruction from a Physics expert. We will use the most successfully proven teaching techniques, and will also create brand new strategies to fit the students' individual needs. DESCRIPTION In this private tutoring session, I will thoroughly explain whatever Physics concepts you are currently struggling with, or we can learn new topics if you want to get ahead. I have taught Physics for over 5 years, and I am passionate about helping students understand it. Just name a topic of Physics (Mechanics, Heat, Wave, Electromagnetism, Modern Physics), and I will explain it in a way that makes the most sense to you. Then we will complete practice problems together to make sure you feel confident moving forward. I will also develop individualized strategies for you to use moving forward. Don't be surprised if I get really excited about the information you're learning - PHYSICS MAKES ME HAPPY AND I HOPE MY ENJOYMENT OF THE SUBJECT MAKES IT LESS INTIMIDATING TO YOU. Physics isn't your enemy; you just need someone to explain it in a way you understand. Please let me! Teacher Expertise I have a B.Tech degree in Computer Science and I have been teaching Physics exclusively for the past 5 years. ABOUT ME I am a Physics lover through and through! I've always said “PHYSICS DOESN'T HAVE TO BE HARD; YOU JUST NEED SOMEONE TO EXPLAIN IT IN A WAY YOU UNDERSTAND." I can do that! I’m passionate about helping students gain confidence and mastery in Physics. Physics is my favorite subjects, so you'll see me get really excited about them! When I teach, I customize my strategies to fit your individual needs, and I have so many tricks up my sleeve for teaching Physics concepts, I can always find a method that works for you. And of course, it is especially important to me to make sure every student feels safe to make mistakes in my class – we celebrate mistakes! The only way to master Physics is to learn from your mistakes! I've taught JEE & NEET Physics online for 5 years and in coaching industry for over 5 years. It's a real pleasure to help students achieve their goals in IIT-JEE & NEET.
