Question

If the current flowing through an inductor of inductance 0.3Henry is 5.3t^2+4.7t. Calculate the power.

(a) 0

(b) 1

(c) 16.854t^3+22.41t^2+6.62t

(d) 15.3t^3+27.8t^2+19

The question was posed to me at a job interview.

My question is taken from Inductor and Capacitor in portion Inductance, Capacitance, and Mutual Inductance of Electric Circuits

Answer 1

The correct answer is (c) 16.854t^3+22.41t^2+6.62t

To explain I would say: P= L*i*(di/dt).