Question: Consider again the loop of wire described in Problem 4. What is the approximate magnitude of the induced emf at (a) t = 0 (b)

Consider again the loop of wire described in Problem 4. What is the approximate magnitude of the induced emf at
(a) t = 0
(b) t = 0.7 s
(c) How are the signs of these two emfs related?

B (T) 0.5 t (s) 1.0 0.5 Figure P21.4

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