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Measurement and Instrumentation

Measurement and Instrumentation
A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is

 25 V.
 100 V.
 50 V.
 200 V.

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Measurement and Instrumentation
The measured value of a resistance is 10.25 ohm, whereas its value of 10.22 ohm. What is absolute error of the measurement?

  0.03 ohm.
 0.01 ohm.
 10.26 ohm.
 15.36 ohm.

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Measurement and Instrumentation
To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows

  a circle.
 a straight line.
 an ellipse.
 sinisoidal.

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Measurement and Instrumentation
Alternating current is measured by

Electrostatic ammeter
Permanent magnet type ammeter
Induction ammeter
Moving iron repulsion type voltmeter

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Measurement and Instrumentation
An Ohmmeter is a

Moving coil instrument
None of the listed here
Moving iron instrument
Dynamometer instrument

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Measurement and Instrumentation
If two meters X and Y require 40 mA and 50 mA respectively, to give full scale deflection, then

 Both X and Y are equally sensitive.
 Y is more sensitive.
 It would not be possible to assess the sensitivity on the basis of the given data.
 X is more sensitive.

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