Magnetic Effects Of Current Question 53

Question: A long copper tube of inner radius R carries a current i. The magnetic field B inside the tube is [MP PMT 1995]

Options:

A) $ \frac{{\mu_{0}}i}{2\pi R} $

B) $ \frac{{\mu_{0}}i}{4\pi R} $

C) $ \frac{{\mu_{0}}i}{2R} $

D) Zero

Show Answer

Answer:

Correct Answer: D

Solution:

Magnetic field inside the hollow conductor (tube) is zero.