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Measurement and Instrumentation

Measurement and Instrumentation
For measurement of mutual inductance we can use

Anderson bridge
Heavyside bridge
Any of the listed here
Maxwell's bridge

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Measurement and Instrumentation
The resistance can be measured most accurately by

Voltmeter-ammeter method
Multimeter
Bridge method
Megger

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Measurement and Instrumentation
The current ‘I’ through a resistance R is measures with the following uncertainties I = 4 A ± 0.5%, R = 100Ω±0.2%. If power is computed from these two measured quantities, the uncertainty in the power computed will be

 1.2%
 0.5%
 1%
 1.5%

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Measurement and Instrumentation
An oscilloscope indicates

RMS value
DC value of voltage
Peak to peak value of voltage
Average value

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Measurement and Instrumentation
A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is

 120 Ohm.
 0.0012 Ohm.
 0.0024 Ohm.
 240 Ohm.

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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.
 inclined at 60o.
 perpendicular.
 parallel.

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MORE MCQ ON Measurement and Instrumentation

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