Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at Low frequencies High load on the transformer High frequencies Power frequencies Low frequencies High load on the transformer High frequencies Power frequencies ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measurement of inductance having high value, we should use Maxwell wein bridge Any of the listed here Hay's bridge Maxwell's bridge Maxwell wein bridge Any of the listed here Hay's bridge Maxwell's bridge ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When testing a coil having a resistance of 10 ohms, resonance occurred when the oscillator frequency was 10 MHz and rotating capacitor was set at 500/2π pF. The effective value of the Q of the coil is 54.2. 31.4. 25.4. 20. 54.2. 31.4. 25.4. 20. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measuring an AC voltage by an AC potentiometer it is desirable that the supply for the potentiometer is taken from A source other than the source of unknown voltage. The same source as the unknown voltage. A battery. Any of above. A source other than the source of unknown voltage. The same source as the unknown voltage. A battery. Any of above. 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. 0 W. 25 W. 100 W. 50 W. 0 W. 25 W. 100 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Alternating current is measured by Induction ammeter Permanent magnet type ammeter Moving iron repulsion type voltmeter Electrostatic ammeter Induction ammeter Permanent magnet type ammeter Moving iron repulsion type voltmeter Electrostatic ammeter ANSWER DOWNLOAD EXAMIANS APP
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