Measurement and Instrumentation ______ instruments are most sensitive. Moving iron Hot wire Permanent magnet moving coil Dynamometer Moving iron Hot wire Permanent magnet moving coil Dynamometer ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The effect of load resistance is important in measurement of resistance of shunt. resistance of shunt winding. resistance of ammeter. both A and B. resistance of shunt. resistance of shunt winding. resistance of ammeter. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a wheatstone bridge, a change of 6 Ω in the unknown arm of bridge is required to produce a change in deflection of 2.4 mm of the galvanometer. The sensitivity is 2.5 mm/Ω 0.8 mm/Ω 5.0 mm/Ω 0.4 mm/Ω 2.5 mm/Ω 0.8 mm/Ω 5.0 mm/Ω 0.4 mm/Ω 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 1.5% 1% 0.5% 1.2% 1.5% 1% 0.5% 1.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is found by measuring current flowing and the power fed into the circuit. If the limiting errors in the measurement of power and current are ± 1.5% and ± 1.0% respectively, the limiting error in the measurement of resistance ± 1% ± 1.5% ± 3.5% ± 2.5% ± 1% ± 1.5% ± 3.5% ± 2.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The range of a moving iron ac ammeter is extended by A multiplier None of the listed here Changing number of turns of operating coil A shunt A multiplier None of the listed here Changing number of turns of operating coil A shunt ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS