Measurement and Instrumentation
A sinusoidal signal waveform, when observed on an oscilloscope, has a peak to peak amplitude of 6 cm. If the vertical sensitivity setting is 5 v/cm, then rms value of the voltage will be

 15 V.
 12.6 V.
  10.6 V.
 11.1 V.

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

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