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# Derive Expression for Electric Circuit

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I need some help with this question:
a. Derive an expression for the phase shift of the circuit below

b. Calculate the phase shift at a frequency of 30 KHZ given that:
L = 12 mH
R = 220 ohms
C = 47 nF
RL = 1.2 K*ohms

c. What is the effect on output signal amplitude and phase of open circuiting the load? See attachment.

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#### Solution Preview

Please see the attached file.

a. Derive an expression for the phase shift of the circuit below.

Then, the phase of is .
From voltage divide rule:

The ...

#### Solution Summary

This solution contains step-by-step derivations for the phase shift of the circuit. It also calculates the phase shift at a specific frequency and what the effect on output signal amplitude and phase of open circuiting the load. All workings are shown with brief explanations.

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