Measurement and Instrumentation A PMMC voltmeter is connected across a series combination of a DC voltage source V1 = 2 V and an AC voltage source V2 = 3sin4t, the voltmeters reads (2 + √3/2)V. 0 V. 2 V. 5 V. (2 + √3/2)V. 0 V. 2 V. 5 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving coil permanent magnet instrument can be used as ______ by using a low resistance shunt. Ammeter Voltmeter Ballastic galvanometer Flux meter Ammeter Voltmeter Ballastic galvanometer Flux meter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of a milli-ammeter must be very low for minimum effect on the current in the circuit. high sensitivity. high accuracy. high precision. minimum effect on the current in the circuit. high sensitivity. high accuracy. high precision. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Relative error is same as ratio of absolute error and true value. None of these absolute error. true error. ratio of absolute error and true value. None of these absolute error. true error. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as (400 ±5) A (400 ± 3) A (400 ± 1) A (400 ± 2.24) A (400 ±5) A (400 ± 3) A (400 ± 1) A (400 ± 2.24) A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measuring a very high resistance we should use None of the listed here Megger Wheat stone bridge Kelvin's double bridge None of the listed here Megger Wheat stone bridge Kelvin's double bridge ANSWER DOWNLOAD EXAMIANS APP
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