EXAMIANS
Which instrument has identical calibration for ac as well as dc values?
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The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ?
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The internal resistance of a milli-ammeter must be very low for
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The measurment of very low and very high frequencies is invariably done using a frequency counter in which one of the following?
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An induction meter can handle current upto
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The transfer instrument which is used for standardization of a polar type AC potentiometer is
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The internal resistance of Weston standard cell is of order of
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The terminals across the source are ______________________________ if a current source is to be neglected.
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A Manganin swap resistance is connected in series with a moving coil ammeter consisting of a milli ammeter and a suitable shunt in order to
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When using ohmmeter, applied voltage is to be disconnected from the circuit because
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