# Phase angle between peak source voltage and peak voltage across RLC?

**1. The problem statement, all variables and given/known data**

An LRC series circuit with R = 200Ω , L = 31mH , and C = 1.8μF is powered by an ac voltage source of peak voltage V0 = 540V and frequency f = 550Hz. What are the peak voltages across the inductor, capacitor, and resistor and their phase angles relative to the source voltage?

**2. Relevant equations**

Phase shift = [itex]tan^{-1}[/itex]([itex]\frac{XL – XC}{R})[/itex]

I already found the peak voltages across the components.

**3. The attempt at a solution**

I can’t figure out how to find the phase angles between the source voltage and the peak voltage across the circuit components. Is the phase angle between the voltages found using this equation?

http://ift.tt/1gCbuTq

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