Measurement and Instrumentation ______ instruments are most sensitive. Permanent magnet moving coil Dynamometer Moving iron Hot wire Permanent magnet moving coil Dynamometer Moving iron Hot wire 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 2 1 5 4 2 1 5 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The disc of an instrument using eddy current damping should be of Non conducting and magnetic material None of the listed here Conducting and non magnetic material Conducting and magnetic material Non conducting and magnetic material None of the listed here Conducting and non magnetic material Conducting and magnetic material ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measuring an AC voltage by an AC potentiometer it is desirable that the supply for the potentiometer is taken from The same source as the unknown voltage. Any of above. A source other than the source of unknown voltage. A battery. The same source as the unknown voltage. Any of above. A source other than the source of unknown voltage. A battery. 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 99.99 ohms 100 ohms 100 K ohms 99.99 K ohms 99.99 ohms 100 ohms 100 K ohms ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices may be used for extending the range of instruments? All of the listed here Potential transformers Current transformers Shunt All of the listed here Potential transformers Current transformers Shunt ANSWER DOWNLOAD EXAMIANS APP
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