55. The coil shown below has 2 turns, a cross-sectional area of 0.20 m2 , and a field (parallel to the axis of the coil) with a magnitude given by B = (4.0 + 3.0t 2 ) T, where t is in s. What is the potential difference, VA - VC, at t = 3.0 s?5ed8719b32a7c.jpg
(A) -7.2 V
(B) +7.2 V
(C) -4.8 V
(D) +4.8V
(E) -12 V

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統計: A(39), B(5), C(1), D(1), E(0) #2336755