GATE EE 2016 Set 1 — Question 63
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Electrical & Electronic Measurements → Electrical Quantity Measurement → PMMC & Moving Iron
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Question
A dc voltage with ripple is given by volts. Measurements of this voltage , made by moving-coil and moving-iron voltmeters, show readings of and respectively. The value of , in volts, is _________.
Correct answer
0.3 to 0.33
Solution
1.A moving-coil voltmeter measures the average (DC) value of the voltage:
2.A moving-iron voltmeter measures the RMS value of the voltage:
3.Calculate the difference:
The value is approximately .Continue learning with Success Tracker
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