EXAMIANS
The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is
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In a single phase energy meter, braking torque is provided by
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The transfer instrument which is used for standardization of a polar type AC potentiometer is
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Assertion(A): A low power factor wattmeter has special constructional features to ensure accurate measurment. Reason(R): Extension of wattmeter range in DC circuit can be easily done by using current and potential transformer
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An ammeter is a
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Which devices used to measure the temperature of an object ?
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Which one the following statements is correct? The application of the instrument in wrong manner in the procedure of measurement results in a/an
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What is the approximate input impedance of a CRO?
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When testing a coil having a resistance of 10 ohms, resonance occurred when the oscillator frequency was 10 MHz and rotating capacitor was set at 500/2π pF. The effective value of the Q of the coil is
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The scale of a rectifier instrument is
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