Home
Class 12
PHYSICS
A small coil of radius r is placed at th...

A small coil of radius `r` is placed at the centre of a large coil of radius `R`, where `R gtgt r`. The two coils are coplanar. The mutual inductance between the coils is proportional to

A

`(mu_(0)pir)/(2R)`

B

`(mu_(0)pir^(2))/(2R)`

C

`(mu_(0)pir^(2))/(2R^(2))`

D

`(mu_(0)pir)/(2R^(2))`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-2 (LEVEL-II)|2 Videos

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-3 (LEVEL-I)|13 Videos

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-1|25 Videos

  • ELECTRO MAGNETIC WAVES

    MOTION|Exercise EXERCISE - 3 (SECTION - B)|8 Videos

  • ELECTROMAGNETISM

    MOTION|Exercise Exercise|136 Videos

Similar Questions

Explore conceptually related problems

A small coil of radius r is placed at the center of a large coil of radius R, where R>>r. The two coils are coplanar. The mutual inductance between the coils is proportional to

A small coil of radius r is placed at the centre of another coaxial coil of radius R(Rgtgtr) find the coeffcient for this pair of coils.

A small, flat coil of resitance r is placed at the centre of a large, closed coil of resistance R . The coils are coplanar. Their mutual inductance is M . Initially a constant current i was flowing in the inner coil. If this curent is suddenly swithced off, what charge will circulate in the outer coil?

A coil of radius r is placed at the centre of R>>r and coils are in same plane.The coefficient of mutual inductance between the coil is

Two coils are placed closed to each other. The mutual inductance between them assuming R_(2)lt ltR_(1)

Two coil are placed close to each other. The mutual inductance of the pair of coils depends upon.

Two concentric circular coils of radius r and R are placed coaxially with centres coinciding If R gt gt r then calculate the mutual inductance the coils.

Ratio of magnetic field at the centre of a current carrying coil of radius R and at a distance of 3R on its axis is