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(C) The current $i$ produced by a charge $q$ moving in a circle with frequency $n$ is given by $i = q 	imes n$.The magnetic field $B$ at the centre o

Vedclass · Accepted Answer

$\frac{2\pi nq}{r} 	imes 10^{-7} 	ext{ N/A} \cdot 	ext{m}$

Vedclass · Answer

(C) The current $i$ produced by a charge $q$ moving in a circle with frequency $n$ is given by $i = q 	imes n$.The magnetic field $B$ at the centre of a circular loop is given by the formula $B = \frac{\mu_0 i}{2r}$.Substituting $\frac{\mu_0}{4\pi} = 10^{-7} 	ext{ T} \cdot 	ext{m/A}$, we get $\frac{\mu_0}{2} = 2\pi 	imes 10^{-7}$.Thus, $B = (2\pi 	imes 10^{-7}) 	imes \frac{i}{r}$.Substituting $i = nq$, we get $B = \frac{2\pi nq}{r} 	imes 10^{-7} 	ext{ N/A} \cdot 	ext{m}$.

$A$ charge $q$ $C$ moves in a circle at $n$ revolutions per second and the radius of the circle is $r$ $m$. The magnetic field at the centre of the circle is:

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