A coil consists of 100 turns of wire wrapped around a square frame of sides 0.25 m.

Question:

A coil consists of 100 turns of wire wrapped around a square frame of sides 0.25 m. The coil is centered at the origin with each of its sides parallel to the x- or y-axis. Find the induced emf across the open-circuited ends of the coil if the magnetic field is given by
(a) B = z20e–3t (T),
(b) B = z20cos x cos103t (T),
(c) B = z20cos x sin2y cos103t (T