Measurement and Instrumentation For measurement of high direct voltage, one would use _____ voltmeter. Electrostatic Hot wire Moving iron PMMC Electrostatic Hot wire Moving iron PMMC ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a wheatstone bridge, a change of 6 Ω in the unknown arm of bridge is required to produce a change in deflection of 2.4 mm of the galvanometer. The sensitivity is 5.0 mm/Ω 2.5 mm/Ω 0.8 mm/Ω 0.4 mm/Ω 5.0 mm/Ω 2.5 mm/Ω 0.8 mm/Ω 0.4 mm/Ω ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is 4 mA. 3 mA. 2 mA. 1 mA. 4 mA. 3 mA. 2 mA. 1 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The expected value of the voltage across a resistor is 80 V, and the measured value is 79 V. What is the percentage error and relative accuracy of the measurement ? 1.5% & 98.75% 1.25% & 98.25% 1.25% & 98.75% 1.5% & 99% 1.5% & 98.75% 1.25% & 98.25% 1.25% & 98.75% 1.5% & 99% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which instrument has identical calibration for ac as well as dc values? Hot wire type Moving coil type Induction type Moving iron type Hot wire type Moving coil type Induction type Moving iron type ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Wagner earthing device is used to eliminate errors due to Both A and B Electromagnetic coupling None of these Electrostatic coupling Both A and B Electromagnetic coupling None of these Electrostatic coupling ANSWER DOWNLOAD EXAMIANS APP
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