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Measurement and Instrumentation

Measurement and Instrumentation
The form factor in AC is the ratio of

Peak value to rms value
Rms value to average value
Peak value to average value
Rms value to peak value

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Measurement and Instrumentation
Which of the following essential featuresis possessed by an indicating instrument?

Controlling device
Damping device
Deflecting device
All of the listed here

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Measurement and Instrumentation
A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is postioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is

 1 Nm.
 2 Nm.
 100 Nm.
  200 Nm.

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Measurement and Instrumentation
Which of the following cannot be measured by multimeters?

Voltage
Resistance
Current
Frequency

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Measurement and Instrumentation
If the instrument is to have a wide range, the instrument should have

Linear scale
Exponential scale
Square-law scale
Logarithmic scale

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Measurement and Instrumentation
Schering bridge is used to measure which of the following?

 Resistance.
 Inductance.
  Capacitance.
 Frequency.

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