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ESE 2021 Technical Quiz || Measurement of Voltage and Current

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Question 1

A PMMC type voltmeter, having a full-scale reading of 250 V and an internal resistance of 450 kΩ, is connected with the series resistance of 50 kΩ. Calculate the sensitivity of the voltmeter (in ohms/volts).

Question 2

When the damping force is more than the optimum, the instrument will become?

Question 3

The damping technique used in PMMC instrument is:

Question 4

The limiting error in the value of resistance, taking limiting error in current ±3% and for power ±2% is _________%.

Question 5

A 0 - 150 V voltmeter has a guaranteed accuracy of 1% full scale reading. The voltage measured by this instrument is 83 V. The limiting error will be nearly.
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Jun 10ESE & GATE EE