Measurement and Instrumentation The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ? ± 2.5% ± 1% ±3.5% ± 1.5% ± 2.5% ± 1% ±3.5% ± 1.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A CRO probe has an impedance of 500 kΩ in parallel with a capacitance of 10 pF. The probe is used to measure the voltage between P and Q as shown in figure. The measured voltage will be 4.54 V. 5 V. 3.53 V. 4.38 V. 4.54 V. 5 V. 3.53 V. 4.38 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Ratio of readings of two wattmeter connected to measure power in a balanced 3-phase load is 5:3 and the load is inductive. The power factor at load is 0.917 lag. 0.6 lead. 0.6 lag. 0.917 lead. 0.917 lag. 0.6 lead. 0.6 lag. 0.917 lead. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Swamping resistance is used to compensate both A and B. none of these. error due to strong magnetic field. error due to temperature true variations. both A and B. none of these. error due to strong magnetic field. error due to temperature true variations. 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 10. 11. 110. 100. 10. 11. 110. 100. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of an ammeter should be Very small Medium Infinity High Very small Medium Infinity High ANSWER DOWNLOAD EXAMIANS APP