Find the magnetic field at the center of a circular coil of radius R = 10 cm carrying current I = 5 A — JEE Physics
Find the magnetic field at the center of a circular coil of radius $R = 10$ cm carrying current $I = 5$ A.
1 Answer
VAVidaara Admin
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· 1mo ago
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$$B = \frac{\mu_0 I}{2R} = \frac{4\pi\times10^{-7} \times 5}{2\times0.1}$$
$$B = \frac{20\pi\times10^{-7}}{0.2} = 100\pi\times10^{-7} = \pi\times10^{-5}$$
$$B \approx 3.14 \times 10^{-5} T$$
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Discussion (2)
VC
This finally made it click for me — thank you!
AR
What changes if the medium/conditions were different?