Q. Wattmeter reading is not affected by temperature.

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Q. Dynamometer type wattmeter has _________

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Q. Wattmeter reading has errors induced by _________

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Q. Current in a pressure coil of the Dynamometer type wattmeter ________

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Q. Wattmeters are compensated for errors due to inductance by _________

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Q. Eddy currents are induced in solid metal parts within the thickness of the conductor.

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Q. What is the effect of frequency on the torque of a moving system?

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Q. In an ordinary dynamometer, the deflecting torque is _________

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Q. Errors are introduced by ________

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Q. Power coil has a low value of ________

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Q. Resistance of pressure coil in a low power factor dynamometer type wattmeter is ________

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Q. Low power factor wattmeters are designed to ________

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Q. Power loss in the current coil is ________

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Q. Pressure coil has no error.

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Q. Error in a pressure coil can be compensated.

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Q. Induction type instruments are used for ____________

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Q. Driving system in an induction type single phase energy meter consists of _________

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Q. Series electromagnet consists of _________

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Q. Shunt magnet consists of _________

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Q. Shunt magnet has _________

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