An AC source produces an alternating current in a circuit with the function ?(?) = (1.5 ?) cos[(250 s−1 )?]. What is the frequency of the source? What is the maximum current in the circuit?

31. Alternating Current

Alternating Voltages and Currents

Multiple Choice

An AC source produces an alternating current in a circuit with the function ?(?) = (1.5 ?) cos[(250 s⁻¹ )?]. What is the frequency of the source? What is the maximum current in the circuit?

f=39.3 Hz

f=250 Hz

f=393 Hz

f=1570 Hz

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