Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at High load on the transformer Low frequencies High frequencies Power frequencies High load on the transformer Low frequencies High frequencies Power frequencies 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 0 W. 100 W. 50 W. 25 W. 0 W. 100 W. 50 W. 25 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving iron ammeter may be compensated for frequency errors by Series resistance A series inductance A shunt resistance Shunt capacitance Series resistance A series inductance A shunt resistance Shunt capacitance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An ammeter is a Recording instrument Secondary instrument Integrating instrument Absolute instrument Recording instrument Secondary instrument Integrating instrument Absolute instrument ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An electrodynamic meter can be used to measure both AC and DC voltage. DC current. AC volatge. DC voltage. both AC and DC voltage. DC current. AC volatge. DC voltage. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is 300∠90° ohm. 150∠30° ohm. 400∠-90° ohm. 600∠-150° ohm. 300∠90° ohm. 150∠30° ohm. 400∠-90° ohm. 600∠-150° ohm. ANSWER DOWNLOAD EXAMIANS APP
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