Measurement and Instrumentation Which of following statement are correct in case of power factor meter? Both B and C. The restoring torque is provided by a controlling torque. It consist of two coils mounted at right angles to each other. The deflection is proportional to phase angle between field coil and crossed coil. Both B and C. The restoring torque is provided by a controlling torque. It consist of two coils mounted at right angles to each other. The deflection is proportional to phase angle between field coil and crossed coil. 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 300∠90° ohm. 150∠30° ohm. 400∠-90° ohm. 600∠-150° ohm. 300∠90° ohm. 150∠30° ohm. 400∠-90° ohm. 600∠-150° ohm. 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 K ohms 100 K ohms 100 ohms 99.99 ohms 99.99 K ohms 100 K ohms 100 ohms 99.99 ohms ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For the AC bridge circuit shown in figure at balance the value of Rd will be (Rc/Ra).Rb. (Rb/Rc).Ra. (Ra/Rc).Rb. (Rc/Rb).Ra. (Rc/Ra).Rb. (Rb/Rc).Ra. (Ra/Rc).Rb. (Rc/Rb).Ra. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Figure show an RC potentiometer to measure AC voltage. It is desire that Vo/Vi should be independent of frequency. The value of C shoud be 0.1 µF. 0.09 µF. 10 µF. 11 µF. 0.1 µF. 0.09 µF. 10 µF. 11 µF. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The material of the shunt should have _______ temperature co-efficient of resistance. Negative None of the listed here Positive Negligible Negative None of the listed here Positive Negligible ANSWER DOWNLOAD EXAMIANS APP
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