Measurement and Instrumentation The EMF of Weston standard cell is measured using Digital Volt meter Potentiometer Moving-coil meter Moving- iron meter Digital Volt meter Potentiometer Moving-coil meter Moving- iron meter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation How many fundamental units are there ? 7 8 6 4 7 8 6 4 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The circuit in figure is used to measure the power consumed by the load. The current coil and the voltage coil of the wattmeter have 0.02 Ω and 1000 Ω resistance respectively. The measured power compared to the load power will be 0.4 more. 0.4% less. 0.2% less. 0.2% more. 0.4 more. 0.4% less. 0.2% less. 0.2% more. 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 1.2% 1.5% 0.5% 1% 1.2% 1.5% 0.5% 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a gravity controlled instrument, the deflection angle is proportional Square of the measurand Sine of the measurand Sine inverse of measurand Measurand Square of the measurand Sine of the measurand Sine inverse of measurand Measurand ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be 50 W. 100 W. 0 W. 25 W. 50 W. 100 W. 0 W. 25 W. ANSWER DOWNLOAD EXAMIANS APP
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