Measurement and Instrumentation Wien bridge is useful for measuring Medium frequency Low frequency Very high frequency High frequency Medium frequency Low frequency Very high frequency High frequency 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 150∠30° ohm. 400∠-90° ohm. 600∠-150° ohm. 300∠90° ohm. 150∠30° ohm. 400∠-90° ohm. 600∠-150° ohm. 300∠90° ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Resistance of a VARISTOR varies with Voltage Current Temperature Both Voltage and Temperature Voltage Current Temperature Both Voltage and Temperature ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The chemical effect of current is used in C. energy meter C. ammeter hour meter None of these C. ammeter C. energy meter C. ammeter hour meter None of these C. ammeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is not correct? An electronic voltmeter draw appreciable current from the source. Voltmeter should have very high resistance. An ammeter should have a very low resitance. A shunt should have a very low resistance. An electronic voltmeter draw appreciable current from the source. Voltmeter should have very high resistance. An ammeter should have a very low resitance. A shunt should have a very low resistance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are perpendicular. inclined at 60o. inclined at 30o. parallel. perpendicular. inclined at 60o. inclined at 30o. parallel. ANSWER DOWNLOAD EXAMIANS APP
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