Measurement and Instrumentation The resistance can be measured most accurately by Bridge method Multimeter Megger Voltmeter-ammeter method Bridge method Multimeter Megger Voltmeter-ammeter method ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The current ‘I’ through a resistance R is measures with the following uncertainties I = 4 A ± 0.5%, R = 100Ω±0.2%. If power is computed from these two measured quantities, the uncertainty in the power computed will be 1% 1.5% 1.2% 0.5% 1% 1.5% 1.2% 0.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A pressure measurement instrument is calibrated between 10 bar and 260 bar. The scale span of the instrument is 270 bar. 260 bar. 250 bar. 10 bar. 270 bar. 260 bar. 250 bar. 10 bar. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of a milli-ammeter must be very low for high sensitivity. high precision. high accuracy. minimum effect on the current in the circuit. high sensitivity. high precision. high accuracy. minimum effect on the current in the circuit. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The dynamometer principle can be used for ammeter only. wattmeter only. ammeter, voltmeter and wattmeter. voltmeter only. ammeter only. wattmeter only. ammeter, voltmeter and wattmeter. voltmeter only. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A Manganin swap resistance is connected in series with a moving coil ammeter consisting of a milli ammeter and a suitable shunt in order to Minimize the effect of temperature variation. Reduce the size of the meter. Minimize the effect of stray magnetic fields. Obtaine large deflecting torque. Minimize the effect of temperature variation. Reduce the size of the meter. Minimize the effect of stray magnetic fields. Obtaine large deflecting torque. ANSWER DOWNLOAD EXAMIANS APP
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