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Measurement and Instrumentation

Measurement and Instrumentation
The core flux in the CT of above question no.6, under the given operating conditions is

 0.
 225 mWb.
 1000 mWb.
 450 mWb.

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Measurement and Instrumentation
The scale of a rectifier instrument is

Either linear or non linear
None of the listed here
Non-linear
Linear

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Measurement and Instrumentation
Standardization of potentiometer is done in order that, they become

 accurate.
 precise.
 accurate and precise.
 accurate and direct reading.

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Measurement and Instrumentation
The internal resistance of Weston standard cell is of order of

 1000 ohm.
 10 ohm.
 100 ohm.
 1 ohm.

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Measurement and Instrumentation
To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken

From a source which is not the same as the unknown voltage
From a battery
From the same source as the unknown voltage
Any of the above

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Measurement and Instrumentation
In eddy current damping, disc or former is made of a material that is a

Conductor but non magnetic
Non conductor and non magnetic
Non conductor but magnetic
Conductor but magnetic

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