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?

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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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