Measurement and Instrumentation Which one of the following meters has maximum loading effect on the circuit under measurement ? 100 Ω/volt 10 MΩ/volt 1000 Ω/volt 1 MΩ/volt 100 Ω/volt 10 MΩ/volt 1000 Ω/volt 1 MΩ/volt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Wien bridge is useful for measuring Very high frequency Medium frequency High frequency Low frequency Very high frequency Medium frequency High frequency Low frequency ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is 175.4o. 94.6o. 4.6o. 85.4o. 175.4o. 94.6o. 4.6o. 85.4o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A potentiometer may be used for Calibration of ammeter Measurrment of resistance All of the listed here Measurement of current Calibration of ammeter Measurrment of resistance All of the listed here Measurement of current ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor? 100W 50W 150W 200W 100W 50W 150W 200W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In which of the transformer is the secondary nearly short circuited under normal operating condition? PT. CT. Distribution transformer. Power transformer. PT. CT. Distribution transformer. Power transformer. ANSWER DOWNLOAD EXAMIANS APP
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