Q2.Consider the following statement
(i) The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil.
(ii) The compensating coil of a low power factor wattmeter compensates the effect 0of the impedance of the voltage coil circuit.
Answer : Option BExplaination / Solution: No Explaination.
Q7.An analog voltmeter uses external multiplier settings. With a multiplier setting of 20 kΩ it reads
440 V and with a multiplier setting of 80 kΩ it reads 352 V. For a multiplier setting of 40 kΩ the
Q10.A strain gauge forms one arm of the bridge shown in the figure below and has a nominal resistance
without any load as Rs = 300 Ω. Other bridge resistances are R1 = R2 = R3 = 300 Ω. The maximum
permissible current through the strain gauge is 20 mA. During certain measurement when the
bridge is excited by maximum permissible voltage and the strain gauge resistance is increased by
1% over the nominal value, the output voltage V0 in mV is
Answer : Option CExplaination / Solution: No Explaination.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0