EASY
12th ICSE
IMPORTANT
Earn 100

What is an ideal inductor? Why inductors are made of copper?

Important Questions on Electromagnetic Induction

EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 11 - Electromagnetic Induction>QUESTIONS>Q 15
Explain mutual induction, giving one example.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 11 - Electromagnetic Induction>QUESTIONS>Q 16
Define mutual inductance of two coils and write its SI unit. Name two factors on which the mutual inductance between a pair of coils depends?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 11 - Electromagnetic Induction>QUESTIONS>Q 17
What are eddy currents?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 11 - Electromagnetic Induction>QUESTIONS>Q 18
Why is the core of a transformer laminated?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 11 - Electromagnetic Induction>QUESTIONS>Q 19
A current-carrying circular loop is free to turn in a uniform external magnetic field. What is its orientation of stable equilibrium? Show that in this orientation, the flux of the external field plus the flux of the field produced by the loop is maximum?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 11 - Electromagnetic Induction>QUESTIONS>Q 20
A current-carrying loop of irregular shape is located in an external magnetic field. If the wire is flexible, it takes a circular shape. Why?
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 11 - Electromagnetic Induction>QUESTIONS>Q 21
A circular conducting loop of radius a and resistance R is placed with the plane perpendicular to a time-varying magnetic field B=B0 sin ωt. Obtain expression for the current induced in the loop.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 11 - Electromagnetic Induction>QUESTIONS>Q 22
How can a space-traveller detect the presence of magnetic field on an unknown planet with the help of a sensitive galvanometer and a coil of wire?