Home
Class 12
PHYSICS
A close loop is placed in a time-varying...

A close loop is placed in a time-varying magnetic field. Electrical power is dissipated due to the current induced in the coil. If the number of turns were to be quadrupled and the wire radius halved keeping the radius of the loop unchanged, the electrical power dissipated would be :

A

halved

B

the same

C

doubled

D

quadrupled

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Exercis-2 PART 2|17 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Exercis-2 PART 3|10 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Exercis-1 PART 2|51 Videos

  • ELECTRODYNAMICS

    RESONANCE|Exercise Advanced level problems|31 Videos

  • ELECTROSTATICS

    RESONANCE|Exercise HLP|39 Videos

Similar Questions

Explore conceptually related problems

A short-circuited coil is placed in a time-varying magnetic field. Electrical power is dissipated due to the current induced in the coil. If the number of turns were to be quadrupled and the wire radius halved, the electrical power dissipated would be

A circular loop of radius 1m is placed in a varying magnetic field given as B=6t Tesla, where t is time in sec. (a)Find the emf induced in the coil if the plane of the coil is perpendicular to the magnetic field. (b) Find the electric field in the tangential directin, induced due to the changing magnetic field. (c)Find the current in the loop if its resistance is 1Omega//m .

A cicular current loop of radius a is placed in a radial magnetic field B as shown . The net force acting of the loop is :

If we double the radius of a current carrying coil keeping the current unchanged, the magnetic field at its centre

What happens to the magnetic field at the centre of a circular current carrying coil if we double the radius of the coil keeping the current unchanged?

A circular loop of radius a, carrying a current I, is placed in a tow dimensional magnetic field. The centre of the loop coincides with the centre of the filed The strenght of the magnetic field at the pariphery of the loop is B. find the magnetic force on the wire.