SSC JE Electrical Engineering 25th May 2014 Shift-2

Instructions

For the following questions answer them individually

Question 141

The AC bridge used for measurement of dielectric loss of capacitor is

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Question 142

In electrodynamometer ammeter, the deflection of the pointer is proportional to

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Question 143

In which of the following transformers, is the secondary winding always kept closed ?

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Question 144

Two holes are drilled in the disc on a diameter of energy-meter to

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Question 145

Which of the following instruments has the highest torque/weight ratio among the given instruments ?

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Question 146

If current through the operating coil of a moving iron instrument is doubled, the operation force becomes

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Question 147

In moving iron instruments, the iron moves in direction to cause

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Question 148

A moving coil instrument has a resistance of $$10Ω$$ and gives full scale deflection at 0.5 V potential difference across it. How can it be adapted to measure a current upto 100 A ?

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Question 149

The multiplying power of the shunt of a milliammeter is 8. If the circuit is 200 mA, then current through the meter is

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Question 150

The material to be used in the manufacture a standard resistor should be of

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