Measurement and Instrumentation The internal resistance of a milli-ammeter must be very low for high sensitivity. high accuracy. high precision. minimum effect on the current in the circuit. high sensitivity. high accuracy. high precision. minimum effect on the current in the circuit. 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% 1.5% & 99% 1.25% & 98.75% 1.25% & 98.25% 1.5% & 98.75% 1.5% & 99% 1.25% & 98.75% 1.25% & 98.25% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a single phase energy meter, braking torque is provided by Permanent magnet None of the listed here Fluid friction Air friction Permanent magnet None of the listed here Fluid friction Air friction ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The range of a moving iron ac ammeter is extended by Changing number of turns of operating coil None of the listed here A multiplier A shunt Changing number of turns of operating coil None of the listed here A multiplier A shunt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Alternating current is measured by Permanent magnet type ammeter Electrostatic ammeter Moving iron repulsion type voltmeter Induction ammeter Permanent magnet type ammeter Electrostatic ammeter Moving iron repulsion type voltmeter Induction ammeter 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 ? ±0.5% ±3.5% ± 1.5% ± 3.0% ±0.5% ±3.5% ± 1.5% ± 3.0% ANSWER DOWNLOAD EXAMIANS APP
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