Question

If i2 = 4 cos(3t) and and i1 = 0. Find v2.

(a) -12 cos(3t) V

(b) -24 cos(3t) V

(c) -36 cos(3t) V

(d) -48 cos(3t) V

I have been asked this question by my college director while I was bunking the class.

Origin of the question is Magneticaly coupled circuits topic in section EDC Overview of Electronic Devices & Circuits

Answer 1

The correct option is (c) -36 cos(3t) V

Easiest explanation: v2 = 3 d(i1)/dt + 2 d(i2)/dt.