Q. The precision of an instrument indicates its ability to reproduce a certain reading with a given

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Q. Assertion (A): A photovoltaic cell is greatly affected by temperature.

Reason (R): Both germanium and silicon can be used for photovoltaic cells.

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Q. Wagner earthing device eliminates

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Q. The deflection sensitivity of a CRO is generally expressed in

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Q. The response of D'Arsonval galvanometer is over damped if

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Q. Assertion (A): The speed of a shaft can be measured by using a dc tacho generator.

Reason (R): A two phase servometer can also be used as a speed transducer.

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Q. A Weston frequency meter is

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Q. The 10 MHz in the specification of CRO means that

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Q. Rayleigh current balance is an absolute instrument.

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Q. If the load current is high, the pressure coil of wattmeter should be connected directly across the load.

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Q. In measurements using CRO, Lissajous patterns are used to

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Q. A dynamometer wattmeter is suitable for both dc and ac.

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Q. If Ey is the voltage applied to Y plates, the vertical deflection of beam is proportional to

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Q. The method of frequency compensation in moving iron voltmeter is

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Q. A moving iron instrument has

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Q. The temperature coefficient of resistance for a thermistor is

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Q. To measure an unknown ac voltage by an ac potentiometer it is desirable that supply for the potentiometer is taken

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Q. A linear displacement digital transducer generally uses

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Q. Two wattmeter method for 3 phase power measurement can be used only for

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Q. A coil resonates at 1 MHz with a resonating capacitance of 72 pF. At 500 pF, resonance is obtained with a resonating capacitor of 360 pF. The self capacitance of coil is

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