Measurement and Instrumentation The calibration of a voltmeter can be carried out by using A potentiometer. A frequency meter. An ammeter. A function generator. A potentiometer. A frequency meter. An ammeter. A function generator. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A permanent magnet moving coil ammeter has a coil resistance of 99ohm and Full Scale DeflectionFSD. current of 0.1mA. Shunt resistance is 1 ohm. Current through the meter at 0.5 F.S.D is 0.1mA 0.023mA 0.007mA 0.05mA 0.1mA 0.023mA 0.007mA 0.05mA ANSWER DOWNLOAD EXAMIANS APP
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 11. 10. 100. 110. 11. 10. 100. 110. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving coil ammeter has a uniform scale with 50 division and gives a full scale reading 10 A. The instrument can read up to (1/5)th of a scale division with a fair degree of certainty. What is the resolution of the instrument in mA? 80 mA. 40 mA. 25 mA. 50 mA. 80 mA. 40 mA. 25 mA. 50 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Deflection method direct measurements are most widely used as these are least time consuming. most simple and least time consuming. most simple. most accurate. least time consuming. most simple and least time consuming. most simple. most accurate. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Random errors Gross errors Systematic errors Environmental errors Random errors Gross errors Systematic errors Environmental errors ANSWER DOWNLOAD EXAMIANS APP
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