A circular loop made from a flexible, conducting wire is shrinking. Its radius a

Question

A circular loop made from a flexible, conducting wire is shrinking. Its radius as a function of time is

The loop is perpendicular to a steady, uniform magnetic field B. Find an expression for the induced emf in the loop at time t. (Use the following as necessary: ?, r0, B, and t.)

A circular loop made from a flexible, conducting wire is shrinking. Its radius as a function of time is r = r0e - beta t. The loop is perpendicular to a steady, uniform magnetic field B. Find an expression for the induced emf in the loop at time t. (Use the following as necessary: beta, r0, B and t.) epsilon =

Explanation / Answer

Magnetic Flux (?m)=A*B
I(induced) = ? / R
? =Absolute value of (d?/dt)

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