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Measurement and Instrumentation

Measurement and Instrumentation
An electrodynamic meter can be used to measure

 DC voltage.
  both AC and DC voltage.
 AC volatge.
 DC current.

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Measurement and Instrumentation
Which devices used to measure the temperature of an object ?

 Odometer
 Thermometers
 Poteintiometer
 Galvanometer

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Measurement and Instrumentation
In a moving coil instrument, the deflecting torque is proportional to

Square of the current
Current
Sine of the measurand
Squareroot of the current

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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

  10.6 V.
 11.1 V.
 12.6 V.
 15 V.

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Measurement and Instrumentation
For a circuit given that I = 2 ± 5 % A, R = 100 ± 0.2 % Ω the limiting error in the power dissipation I2 R in the resistor R is

 10.2%
 5.2%
 25.2%
 1.2%

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Measurement and Instrumentation
A bridge circuit is shown in the figure below. Which one of the sentence given below is most suitable for balancing the bridge?

 First adjust R2 and then adjust R4.
 First adjust R4 and then adjust R1.
 First adjust R4 and then adjust R2.
 First adjust R2 and then adjust R3.

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