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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.
 1000 mWb.
 450 mWb.
 225 mWb.

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Measurement and Instrumentation
When a potentiometer is used for measurement of voltage of an unknown source, the power consumed in the circuit of the unknown source under null condition is

 ideally zero.
 high.
 small.
 very high.

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Measurement and Instrumentation
The best type of meter moment is ______ moment.

Iron- vane
D'Arsonval
Dynamometer
None of the listed here

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

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

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Measurement and Instrumentation
In a wheatstone bridge, a change of 6 Ω in the unknown arm of bridge is required to produce a change in deflection of 2.4 mm of the galvanometer. The sensitivity is

 2.5 mm/Ω
 0.8 mm/Ω
 0.4 mm/Ω
 5.0 mm/Ω

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Measurement and Instrumentation
The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are

 inclined at 30o.
 perpendicular.
 inclined at 60o.
 parallel.

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MORE MCQ ON Measurement and Instrumentation

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