Measurement and Instrumentation To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken From a source which is not the same as the unknown voltage From the same source as the unknown voltage Any of the above From a battery From a source which is not the same as the unknown voltage From the same source as the unknown voltage Any of the above From a battery ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A permanent magnet moving coil ammeter has a coil resistance of 99ohm and Full Scale DeflectionFSD. current of 0.1mA. Shunt resistance is 1 ohm. Current through the meter at 0.5 F.S.D is 0.1mA 0.05mA 0.007mA 0.023mA 0.1mA 0.05mA 0.007mA 0.023mA ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Ampere is one of the Base units Units used to measure charge Supplementary units Derived units Base units Units used to measure charge Supplementary units Derived units ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Most sensitive galvanometer is Duddle galvanometer Spot ballastic galvanometer Vibration galvanometer Elastic galvanometer Duddle galvanometer Spot ballastic galvanometer Vibration galvanometer Elastic galvanometer ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is 240 Ohm. 120 Ohm. 0.0024 Ohm. 0.0012 Ohm. 240 Ohm. 120 Ohm. 0.0024 Ohm. 0.0012 Ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Resistances can be measured with the help of Wattmeters Ammeters Ohmmeters and resistance bridges Voltmeters Wattmeters Ammeters Ohmmeters and resistance bridges Voltmeters ANSWER DOWNLOAD EXAMIANS APP
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