A nonconducting ring of radius r and mass m carries a total charge q that is uniformly distributed over it. The ring is rotated about its axis with an angular speed ω . Determine the equivalent electric current in the

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Correct answer: A. (q ω)/(2π)

The total charge on the ring is q . The ring rotates with an angular speed ω . The time period of one complete rotation is T = (2π)/(ω) . The equivalent electric current I is the total charge passing a given point per unit time. I = (q)/(T) I = (q)/((2π)/(ω)) = (q ω)/(2π)

A nonconducting ring of radius r and mass m carries a total charge...

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