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.