# Circuits: phase angles and its effects on maxium current

## Homework Statement

Circuit

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In the circuit shown, the AC voltage source supplies an rms voltage of 147 V at frequency f. The circuit has R = 109 Ω, XL = 212 Ω, and XC = 106 Ω.

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(a) Find the impedance of the circuit.
Z = Ω *
1.52e2 OK

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(b) Find the rms current flowing in the circuit.
Irms = A *
9.67e-1 OK

HELP: The rms voltage is equal to the rms current times the impedance.

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(c) Find the phase angle in degrees between the current in the circuit and the voltage supplied by the AC source.
φ = degrees *
4.42e1 OK

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(d) At the instant the voltage across the generator is at its maximum value, what is the magnitude of the current in the circuit?
I = A
.683 NO

HELP: Since the voltage across the generator is not exactly in phase with the current, the current will be less than its maximum value. By what factor will it be less?

## The Attempt at a Solution

I couldn't figure out how phase angle effects maximun cureent
I did Irms*sqrt2 to get Imax but not sure where to go from there