Measurement and Instrumentation Induction wattmeter can measure Ac power only None of the listed here Both AC and DC Dc power only Ac power only None of the listed here Both AC and DC Dc power only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The effect of load resistance is important in measurement of both A and B. resistance of shunt. resistance of ammeter. resistance of shunt winding. both A and B. resistance of shunt. resistance of ammeter. resistance of shunt winding. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The pressure coil of a wattmeter should be connected on the supply side of the current coil when Load impedance is high None of these Supply voltage is low Load impedance is low Load impedance is high None of these Supply voltage is low Load impedance is low ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In the bridge given in the figure, the reading of the high impedance voltmeter is Zero. 6.66 V. - 3.33 V. 4.20 V. Zero. 6.66 V. - 3.33 V. 4.20 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The time/div and voltage axes of an oscilloscope have been creased. A student connects a 1 KHz, 5 V P-P square wave calibrition pulse to channel-1 of the scope and observes the screen to be as shown in the upper trace of figure. An unknown signal is connected to channel-2 (lower trace) of the scope. If the time/div and V/div on both channels are the same, the amplitude (P-P) and period of the unknown signal are respectively 10 V, 1 ms. 5 V, 2 ms. 7.5 V, 2 ms. 5 V, 1 ms. 10 V, 1 ms. 5 V, 2 ms. 7.5 V, 2 ms. 5 V, 1 ms. 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 0.5% 1.2% 1% 1.5% 0.5% 1.2% 1% 1.5% ANSWER DOWNLOAD EXAMIANS APP