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SSC JE EE Score Booster Quiz 4 (Measurements)
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Question 1
The current required for full scale deflection of a voltmeter is 10 mA. Find the sensitivity (in ohms/V) of the voltmeter.
Question 2
A particular ammeter requires a change of 2 A in its coil to produce a change in deflection of the pointer by 5 mm. Calculate its deflection factor.
Question 3
A 0 – 240 V voltmeter has guaranteed accuracy of 5% at full scale. Find the percentage error if the measured value is 132 V.
Question 4
A current of {3+√3 sin(314t+45°)+ √2 cos(314t+30°)} is measured by using a moving iron instrument. The reading of the instrument is –
Question 5
2 mA ammeter with an internal resistance of 144 Ω is to be converted into a 0 – 50 mA ammeter. Calculate the value of shunt required.
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May 21ESE & GATE EE
