Question

An RLCcircuit has a resistance of 200 and an inductance of 15 mH. Its oscillation frequency is 7000 Hz. At time t= 0 the current is 25 mA and there is no charge on the capacitor. After five complete cycles the current is:
A) 0 A
B) 1.8 x10-6A
C) 2.1 x10-4A
D) 2.3 x10-3A
E) 2.5 x10-2A

Answer

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