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Measurement and Instrumentation

Measurement and Instrumentation
The resistance can be measured most accurately by

Voltmeter-ammeter method
Multimeter
Megger
Bridge method

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Measurement and Instrumentation
For handling greater currents induction watt-meters are used in conjunction with

Either of the above
Potential transformers
Power transformers
Current transformers

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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 straight line.
 sinisoidal.
  a circle.
 an ellipse.

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Measurement and Instrumentation
Which one of the following meters has maximum loading effect on the circuit under measurement ?

 100 Ω/volt
 1000 Ω/volt
 10 MΩ/volt
 1 MΩ/volt

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Measurement and Instrumentation
For the AC bridge circuit shown in figure at balance the value of Rd will be

 (Rc/Ra).Rb.
 (Rc/Rb).Ra.
 (Rb/Rc).Ra.
 (Ra/Rc).Rb.

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Measurement and Instrumentation
In flux meter, the controlling torque is produced by

 weight attached to the moving coil.
 not provided at all.
 crossed coil mechanism.
 spring.

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MORE MCQ ON Measurement and Instrumentation

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