Problem 6.3 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=zˆ20e−3t (T)
(b) B = zˆ 20cosx cos103t (T)
(c) B = zˆ 20cosx sin2y cos103t (T)

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