Question

A 1.2-m radius cylindrical region contains a uniform electric field along the cylinder axis. It is increasing uniformly with time. To obtain a total displacement current of 2.0 x10-9 A through a cross section of the region, the magnitude of the electric field should change at a rate of:
A) 5.0 V/ms
B) 12 V/ms
C) 37 V/ms
D) 50 V/ms
E) 4.0 x107 V/ms

Answer

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