Physics · 2011
NEET 2011 · Mains · Code B · Q101
Charge q is uniformly spread on a thin ring of radius R. The ring rotates about its axis with a uniform frequency f Hz. The magnitude of magnetic…
Charge q is uniformly spread on a thin ring of radius R. The ring rotates about its axis with a uniform frequency f Hz. The magnitude of magnetic induction at the centre of the ring is
Official answer
(1)
$\displaystyle \frac{\mu_0 \mathrm{qf}}{2 \mathrm{R}}$
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