Measurement and Instrumentation What is the expression for momentum? mass × acceleration force × displacement mass × velocity change of velocity / time mass × acceleration force × displacement mass × velocity change of velocity / time ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The time/div and voltage axes of an oscilloscope have been creased. A student connects a 1 KHz, 5 V P-P square wave calibrition pulse to channel-1 of the scope and observes the screen to be as shown in the upper trace of figure. An unknown signal is connected to channel-2 (lower trace) of the scope. If the time/div and V/div on both channels are the same, the amplitude (P-P) and period of the unknown signal are respectively 5 V, 1 ms. 10 V, 1 ms. 5 V, 2 ms. 7.5 V, 2 ms. 5 V, 1 ms. 10 V, 1 ms. 5 V, 2 ms. 7.5 V, 2 ms. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In an Anderson bridge, the unknown inductance is measured in terms of Known resistance Known inductance Known inductance and resistance Known capacitance and resistance Known resistance Known inductance Known inductance and resistance Known capacitance and resistance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When a potentiometer is used for measurement of voltage of an unknown source, the power consumed in the circuit of the unknown source under null condition is small. high. ideally zero. very high. small. high. ideally zero. very high. 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 0.007mA 0.1mA 0.023mA 0.05mA 0.007mA 0.1mA 0.023mA 0.05mA ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation 0-150 V voltmeter has an accuracy of 1% of full-scale reading. The voltage measured by the instrument is 75 V. The limiting error is 1% 3% 4% 2% 1% 3% 4% 2% ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS