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(11%) Problem 9: The simple AC circuit shown on the right has resistance R 12.5

ID: 1610588 • Letter: #

Question

(11%) Problem 9: The simple AC circuit shown on the right has resistance R 12.5 2 and impedance Z 123 2. The rms voltage of the power supply is AV 196 rms A 25% Part (a) Express the rms current, I in terms of Avrms and z. rms AV 8 9 4 5 6 1 2 3 rms vo BACKSPACE CLEAR Submit Hint Feedback I give up Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback. A 25% Part (b) Calculate the numerical value of 1 in amps A 25% Part (c) Express the average power dissipated in the circuit, P in terms of Irms and R avg A 25% Part (d) Calculate the value of P in watts avg AV Otheexpertta.com Grade Summary Deductions 0% Potential 100% Submissions Attempts remaining: 20 (096 per attempt) detailed view

Explanation / Answer

(a)

lrms = Vrms / Z

(b)

lrms = 196 / 123

lrms = 1.593 A

(c)

Pavg = lrms^2*R

(d)

Pavg = (1.593)^2*12.5

Pavg = 31.74 W