For the following questions answer them individually
The AC bridge used for measurement of dielectric loss of capacitor is
In electrodynamometer ammeter, the deflection of the pointer is proportional to
In which of the following transformers, is the secondary winding always kept closed ?
Two holes are drilled in the disc on a diameter of energy-meter to
Which of the following instruments has the highest torque/weight ratio among the given instruments ?
If current through the operating coil of a moving iron instrument is doubled, the operation force becomes
In moving iron instruments, the iron moves in direction to cause
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 ?
The multiplying power of the shunt of a milliammeter is 8. If the circuit is 200 mA, then current through the meter is
The material to be used in the manufacture a standard resistor should be of