At what rate would the current in a 100-mH inductor have to change to induce an emf of 1000 V?
A)100 A/s
B)1 A/s
C)1000 A/s
D)10,000 A/s
E)10 A/s

Question

Quizplus · Accepted Answer

The induced emf (ε) in an inductor is given by the formula ε = L * (di/dt), where L is the inductance and di/dt is the rate of change of current. Rearranging for di/dt gives di/dt = ε / L. Substituting the given values, di/dt = 1000 V / 0.1 H = 10,000 A/s.

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