Measurement and Instrumentation To measure high frequency currents, we mostly use ______ ammeter. Thermocouple Dynamometer Hot wire Moving iron Thermocouple Dynamometer Hot wire Moving iron ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for acceleration? Mass x velocity Change in velocity / time Mass x acceleration Force x displacement Mass x velocity Change in velocity / time Mass x acceleration Force x displacement ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A meter has a full-scale deflection of 90o at a current of 1 A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45o will be 0.70 A. 0.50 A. 0.25 A. 0.67 A. 0.70 A. 0.50 A. 0.25 A. 0.67 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ? ± 3.0% ±3.5% ±0.5% ± 1.5% ± 3.0% ±3.5% ±0.5% ± 1.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A dynamometer wattmeter can be used for Both DC and AC Any of the listed here AC only DC only Both DC and AC Any of the listed here AC only DC only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The EMF of Weston standard cell is measured using Moving- iron meter Moving-coil meter Digital Volt meter Potentiometer Moving- iron meter Moving-coil meter Digital Volt meter Potentiometer ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS