Measurement and Instrumentation When the pointer of an indicating instrument comes to rest in the final deflected position, ______ None of the listed here Only deflecting torque acts Only controlling torque acts Both deflecting and controlling torques act None of the listed here Only deflecting torque acts Only controlling torque acts Both deflecting and controlling torques act ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The three resistors R1, R2 and R3 have the following ratings: R1 = 25Ω ± 4%, R2 = 65 Ω ± 4%; R3 =45 Ω ± 4%. If the resistance are connected in series, then limiting error produced in equivalent resistance is 2% 4% 1% 3% 2% 4% 1% 3% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A sinusoidal signal waveform, when observed on an oscilloscope, has a peak to peak amplitude of 6 cm. If the vertical sensitivity setting is 5 v/cm, then rms value of the voltage will be 15 V. 12.6 V. 11.1 V. 10.6 V. 15 V. 12.6 V. 11.1 V. 10.6 V. 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 precision. high sensitivity. high accuracy. minimum effect on the current in the circuit. high precision. high sensitivity. high accuracy. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a ballistic galvanometer, the deflecting torque is proportional to The current through coil Square-root of current through coil Sine of measured Square of current through coil The current through coil Square-root of current through coil Sine of measured Square of current through coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A wattmeter reads 30.34 W. The absolute error in the measurement is - 2.22 W. What is the true value of power? 32.56 W . None of these 28.12 W. 25.45 W. 32.56 W . None of these 28.12 W. 25.45 W. ANSWER DOWNLOAD EXAMIANS APP
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