A single conducting loop of wire has an area of7.6×10 2 m 2 and a resistanceof 1

Question

A single conducting loop of wire has an area of7.6×102 m2 and a resistanceof 120 . Perpendicular to the plane of the loop is amagnetic field of strength 0.55 T. At what rate (in T/s)must this field change if the induced current in the loop is to be0.36 A? B/t = ???? A single conducting loop of wire has an area of7.6×102 m2 and a resistanceof 120 . Perpendicular to the plane of the loop is amagnetic field of strength 0.55 T. At what rate (in T/s)must this field change if the induced current in the loop is to be0.36 A? B/t = ????

Explanation / Answer

Area of a wire is A =7.6*10-2 m2           ResistanceR = 120             rate of the magnetic field is d B / dt = i R /A                                                                      = 0.36 A * 120 / 7.6*10-2 m2                                                                      = 568.4 T / s

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