Measurement and Instrumentation A dynamometer wattmeter can be used for Both DC and AC AC only DC only Any of the listed here Both DC and AC AC only DC only Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. This is to have full deflection when 100V is measured. What is the value of series resistor to be used? 99.99 ohms 100 K ohms 99.99 K ohms 100 ohms 99.99 ohms 100 K ohms 99.99 K ohms 100 ohms 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 ± 1% ± 1.4% ± 3.4% ± 2.4% ± 1% ± 1.4% ± 3.4% ± 2.4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Moving iron instruments have _____ scale. Log Squared Uniform None of the listed here Log Squared Uniform None of the listed here 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 600∠-150° ohm. 400∠-90° ohm. 300∠90° ohm. 150∠30° ohm. 600∠-150° ohm. 400∠-90° ohm. 300∠90° ohm. 150∠30° ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is not correct? 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. Voltmeter should have very high resistance. ANSWER DOWNLOAD EXAMIANS APP