Question: The peak current I m (in A) in an alternating-current circuit is given by where P is the power developed, Z is the magnitude of

The peak current I m (in A) in an alternating-current circuit is given by

1 2P Z cos o

where P is the power developed, Z is the magnitude of the impedance, and ∅ is the phase angle between the current and voltage. Evaluate I_m for P = 5.25W, Z = 320Ω , and ∅ = 35.4°.

1 2P Z cos o

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