Measurement and Instrumentation A galvanometer with a full scale current of 10 mA has a resistance of 1000 Ω. The multiplying power (the ratio of measured current to galvanometer current) of 100 Ω shunt with this galvanometer is 10. 11. 110. 100. 10. 11. 110. 100. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure 5 volts, if one selects a 0-100 volt range voltmeter which is accurate with in ± 1%, then the error in this measurement may be up to ± 2.5% ± 7.5 % ± 20% ± 1.5% ± 2.5% ± 7.5 % ± 20% ± 1.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A single phase load is connected between R and Y terminals of a 415 V, symmetrical, 3-phase, 4 wire system with phase sequence RYB. A wattmeter is connected in the system as shown in figure. The power factor of the load is 0.8 lagging. The wattmeter will read - 597 W. + 597 W. + 795 W. - 795 W. - 597 W. + 597 W. + 795 W. - 795 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The calibration of a voltmeter can be carried out by using A function generator. An ammeter. A frequency meter. A potentiometer. A function generator. An ammeter. A frequency meter. A potentiometer. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An induction wattmeter can be used for Ac only Any of the listed here Both DC and AC Dc only Ac only Any of the listed here Both DC and AC Dc only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Potentiometer method of DC voltage measurement is more accurate than direct measurement using a voltmeter because It loads the circuit to maximum extent. It uses centre zero galvanometer instead of voltmeter. It does not load the circuit at all. It loads the circuit moderately. It loads the circuit to maximum extent. It uses centre zero galvanometer instead of voltmeter. It does not load the circuit at all. It loads the circuit moderately. ANSWER DOWNLOAD EXAMIANS APP
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