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 0.023mA 0.1mA 0.007mA 0.05mA 0.023mA 0.1mA 0.007mA 0.05mA ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Electrostatic instruments are used as Both ammeter and voltmeter Wattmeter only Ammeters only Voltmeters only Both ammeter and voltmeter Wattmeter only Ammeters only Voltmeters only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A bridge circuit is shown in the figure below. Which one of the sentence given below is most suitable for balancing the bridge? First adjust R4 and then adjust R1. First adjust R2 and then adjust R4. First adjust R4 and then adjust R2. First adjust R2 and then adjust R3. First adjust R4 and then adjust R1. First adjust R2 and then adjust R4. First adjust R4 and then adjust R2. First adjust R2 and then adjust R3. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is found by measuring current flowing and the power fed into the circuit. If the limiting errors in the measurement of power and current are ± 1.5% and ± 1.0% respectively, the limiting error in the measurement of resistance ± 1% ± 2.5% ± 1.5% ± 3.5% ± 1% ± 2.5% ± 1.5% ± 3.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance can be measured most accurately by Bridge method Voltmeter-ammeter method Megger Multimeter Bridge method Voltmeter-ammeter method Megger Multimeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be 16.02 rpm. 21.1 rpm. 18.2 rpm. 12.8 rpm. 16.02 rpm. 21.1 rpm. 18.2 rpm. 12.8 rpm. ANSWER DOWNLOAD EXAMIANS APP
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