Measurement and Instrumentation What is the approximate input impedance of a CRO? 0 100 MΩ 10 MΩ 1 MΩ 0 100 MΩ 10 MΩ 1 MΩ ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In AC circuits, the connection of measuring instruments cause loading effect errors which may effect both of above. only the magnitude of the quantity being measured. magnitude, phase and waveform of the quantity being measured. only phase of the quantity being measured. both of above. only the magnitude of the quantity being measured. magnitude, phase and waveform of the quantity being measured. only phase of the quantity being measured. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Comparison methods are used because they are expensive. when a high accuracy of measurement is required. because they take least time in measurement. because they are most simple. because they are expensive. when a high accuracy of measurement is required. because they take least time in measurement. because they are most simple. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of a milli-ammeter must be very low for high accuracy. high sensitivity. minimum effect on the current in the circuit. high precision. high accuracy. high sensitivity. minimum effect on the current in the circuit. high precision. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A set of independent current measurements taken by four observers was recorded as : 117.02 mA, 117.11 mA, 117.08 mA and 117.03 mA. What is the range of error ? ± 0.045 ± 0.054 ± 0.065 ± 0.056 ± 0.045 ± 0.054 ± 0.065 ± 0.056 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a dynamometer wattmeter, the moving coil is the Current coil and potential coil None of the listed here Current coil Potential coil Current coil and potential coil None of the listed here Current coil Potential coil ANSWER DOWNLOAD EXAMIANS APP
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