GATE EE 2014 Set 1 — Question 57
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Electric Circuits → Transient & AC Steady-State → Sinusoidal Steady-State
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Question
The reading of the voltmeter (rms) in volts, for the circuit shown in the figure is __________
Correct answer
140 to 142
Solution
The total impedance of the bridge is . This indicates a resonance condition. The total current from the source is limited by the series resistor :This current splits equally into the two parallel branches of the bridge: A.
The voltage at the left node relative to the bottom node is:
The voltage at the right node relative to the bottom node is:
The voltage across the voltmeter is:
The rms value of the voltmeter reading is:
The voltage at the left node relative to the bottom node is:
The voltage at the right node relative to the bottom node is:
The voltage across the voltmeter is:
The rms value of the voltmeter reading is:
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