Home
Class 12
PHYSICS
Two co-axial wires one solid and one hol...

Two co-axial wires one solid and one hollow, each carry the same current `I` in opposite directions. The radius of the inner wire is `r_1`. The inner radius of the hollow wire is `r_2`. What is the magnetic induction at a point where `r_1

A

`(mu_0I)/(2 pi r)`

B

`(mu_0I)/(2 pi r)[r_2^2-r_1^2]`

C

`(mu_0I)/(2 pi r)[r_2^2-r_1^2]`

D

`(mu_0I)/(2 pi r)[1/(r_2^2-r_1^2)]`.

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

If l be the safe current for the fuse wire of radius r , then :

What is the nature of force between two parallel wires carrying current in opposite directions?

Two copper wires, one of length 1 m and the other of length 9m have the same resistance. The diameter in the ratio

A long cylinder wire of radius R carries a unifrom current I flowing through it. The varaiaiton of magnetic field with distance 'r' from the axis of the wire is shown by .

The wire shown in figure carries a current of 40A. The radius of the circular part of the wire is 2 cm. Find the magnetic field at the centre of the circular part of the wire.