Measurement and Instrumentation Wagner earthing device is used to eliminate errors due to Electrostatic coupling Electromagnetic coupling None of these Both A and B Electrostatic coupling Electromagnetic coupling None of these Both A and B ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for momentum? force × displacement mass × velocity change of velocity / time mass × acceleration force × displacement mass × velocity change of velocity / time mass × acceleration ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measuring an AC voltage by an AC potentiometer it is desirable that the supply for the potentiometer is taken from The same source as the unknown voltage. Any of above. A source other than the source of unknown voltage. A battery. The same source as the unknown voltage. Any of above. A source other than the source of unknown voltage. A battery. 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 ± 3) A (400 ± 1) A (400 ± 2.24) A (400 ±5) A (400 ± 3) A (400 ± 1) A (400 ± 2.24) A (400 ±5) A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which amplifier in used in an electronic amplifier? Differential amplifier. Power amplifier. Wideband amplifier. Butter amplifer. Differential amplifier. Power amplifier. Wideband amplifier. Butter amplifer. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When using ohmmeter, applied voltage is to be disconnected from the circuit because Voltage source will increase resistance None of these The ohmmeter has its own internal battery Current will decrease resistance Voltage source will increase resistance None of these The ohmmeter has its own internal battery Current will decrease resistance ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS