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 0.5% 1.5% 1% 1.2% 0.5% 1.5% 1% 1.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read 0 A 2.5 A None of the listed here 5 A 0 A 2.5 A None of the listed here 5 A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of a milli-ammeter must be very low for minimum effect on the current in the circuit. high accuracy. high sensitivity. high precision. minimum effect on the current in the circuit. high accuracy. high sensitivity. high precision. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Resolution of an instrument is the maximum quantity it can measure. the minimum quantity it can measure. ability to distinguish polarity. the maximum non linearity. the maximum quantity it can measure. the minimum quantity it can measure. ability to distinguish polarity. the maximum non linearity. 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 4% 2% 3% 1% 4% 2% 3% 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following meter is most suitable for measuring radio frequency currents? Moving - coil meter. Moving - iron meter. VTVM. Thermocouple meter. Moving - coil meter. Moving - iron meter. VTVM. Thermocouple meter. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS