Alternating Current and Voltage

If the rms current through a 6.8 k resistor is 8 mA, the rms voltage drop across the resistor is

A 5.44 V

B 54.4 V

C 7.07 V

D 8 V

ANS:B - 54.4 V

RMS voltage = rms currant * resistance.
By substituting the value, we get 54.4 V.

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