A circular loop (area = 0.20 m 2 ) turns in a uniformmagnetic field with B = 0.1

Question

A circular loop (area = 0.20 m2) turns in a uniformmagnetic field with B = 0.13 T. At an instant when the anglebetween the magnetic field and the normal to the plane of the loopis rads and is decreasing to /2 rads during 0.5 s,what is the magnitude of the emf induced in the loop? a. 52 mV b. 106 mV c. 26 mV d. 20 mV e. 32 mV A circular loop (area = 0.20 m2) turns in a uniformmagnetic field with B = 0.13 T. At an instant when the anglebetween the magnetic field and the normal to the plane of the loopis rads and is decreasing to /2 rads during 0.5 s,what is the magnitude of the emf induced in the loop? a. 52 mV b. 106 mV c. 26 mV d. 20 mV e. 32 mV

Explanation / Answer

   A = 0.20 m2    B = 0.13 T     = 90o    t = 0.5 s       N = 1     = - N (B /t)       = ...... V    t = 0.5 s       N = 1     = - N (B /t)       = ...... V

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