Magnetic Effects Of Current Question 39

Question: In the figure, shown the magnetic induction at the centre of there arc due to the current in portion AB will be

Options:

A) $ \frac{{\mu_{0}}i}{r} $

B) $ \frac{{\mu_{0}}i}{2r} $

C) $ \frac{{\mu_{0}}i}{4r} $

D) Zero

Show Answer

Answer:

Correct Answer: D

Solution:

The magnetic induction at $ O $ due to the current in portion $ AB $ will be zero because $ O $ lies on $ AB $ when extended.