A 12 H inductor carries a current of 2.0 A. At what rate must the current be changed to produce a 60 V emf in the inductor?

Explanation

To solve the problem, we need to find the rate of change of current (di/dt) required to produce a given electromotive force (emf) in an inductor. We can use the formula for emf in an inductor, which is given by:

\[ \text{emf} = L \frac{di}{dt} \]

where:
- emf is the electromotive force (in volts),
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