Question

if a charge q is moving in a circle of radius r with speed v, then the equivalent current will be?​

Answer 1

Current in the loop will be equal to $\frac{qv}{2\pi r}$

Explanation:

We have given radius of the circle is r

So perimeter $=2\pi r$

Time t will be equal to $t=\frac{dustance}{time}=\frac{2\pi r}{v}$

Charge is given as q

We have to find the current

Current is time rate of change of charge

So $currenti=\frac{q}{t}=\frac{q}{\frac{2\pi r}{v}}=\frac{qv}{2\pi r}$

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