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Physics
Magnetic field at point O will be :
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Q. Magnetic field at point $O$ will be :
Rajasthan PMT
Rajasthan PMT 2002
Moving Charges and Magnetism
A
$\frac{\mu_{0} I}{2 R}$ interior
B
$\frac{\mu_{0} I}{2 R}$ exterior
C
$\frac{\mu_{0} I}{2 R}\left(1-\frac{1}{\pi}\right)$ interior
D
$\frac{\mu_{0} I}{2 R}\left(1+\frac{1}{\pi}\right)$ exterior
Solution:
Magnetic field at the centre of circular loop $B=\frac{\mu_{0} I}{2 R}$ interior.
