Forum

A thick current car...
 
Notifications
Clear all

A thick current carrying cable of radius 'R' carries current 'I' uniformly distributed across its cross-section.

1 Posts
2 Users
0 Likes
355 Views
0
Topic starter

A thick current carrying cable of radius 'R' carries current 'I' uniformly distributed across its cross-section. The variation of magnetic field B(r) due to the cable with the distance 'r' from the axis of the cable is represented by :

1 Answer
0

The answer is (3)

Explanation:

Inside a current-carrying cylindrical conductor.

B = \(\frac{\mu_0I}{2\pi R^2}r\)

∴ B ∝ r

Outside the conductor, B

= \(\frac{\mu_0I}{2\pi r}\)

∴ B ∝ \(\frac{1}{r}\)

This post was modified 3 years ago 5 times by admin
Share:

How Can We Help?