Measurement and Instrumentation The calibration of a voltmeter can be carried out by using An ammeter. A frequency meter. A function generator. A potentiometer. An ammeter. A frequency meter. A function generator. A potentiometer. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A resistance is measured by the voltmeter-ammeter method employing dc excitation and a voltmeter of very high resistance connected directly across the unknown resistance. If the voltmeter and ammeter reading are subject to maximum possible errors of ± 2.4 % and ± 1.0 % respectively, then the magnitude of the maximum possible percentage error in the value of resistance deduced from the measurement is nearly ± 2.4% ± 1% ± 3.4% ± 1.4% ± 2.4% ± 1% ± 3.4% ± 1.4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The main advantage of Anderson bridge over Maxwell bridge is that balance equation independent of frequency. reduction of the cost. measures high Q inductors. attaining balance condition is easier. balance equation independent of frequency. reduction of the cost. measures high Q inductors. attaining balance condition is easier. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Ampere is one of the Supplementary units Units used to measure charge Base units Derived units Supplementary units Units used to measure charge Base units Derived units ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is not correct? Voltmeter should have very high resistance. A shunt should have a very low resistance. An electronic voltmeter draw appreciable current from the source. An ammeter should have a very low resitance. Voltmeter should have very high resistance. A shunt should have a very low resistance. An electronic voltmeter draw appreciable current from the source. An ammeter should have a very low resitance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The inductance of a certain moving iron ammeter is expressed as L = 2+5θ-θ2 µH. The control spring torque is 2 × 10-6 Nm/radian. Find the deflection in radians for a current of 2A. 4 1 2 5 4 1 2 5 ANSWER DOWNLOAD EXAMIANS APP
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