Measurement and Instrumentation
Consider the following statement - 1. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil. 2. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit.

  1 is false but 2 is true.
 Both 1 and 2 are false.
 1 is true but 2 is false.
 Both 1 and 2 are true.

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Measurement and Instrumentation
If an inductance L is connected in one arm of bridge and resistance R1, R2, R3 in other three arms

 The bridge is balanced for some specified value of R1, R2, R3.
 The bridge can not be balanced.
 The bridge is balanced for some specified value of frequency.
 The bridge can be balanced.

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