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Measurement and Instrumentation

Measurement and Instrumentation
The quantity 1/√(∈0 × μ0) in SI units has the

 both ‘a’ and ‘b’.
 dimension LT-1.
 speed of light.
 none of these.

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Measurement and Instrumentation
Which of the quantity consists of unit as Pascal ?

 Impulse
 Temperature
 Pressure
 Force

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Measurement and Instrumentation
A 0 - 100 V voltmeter has a guaranteed accuracy of 2 % of full scale reading. The voltage measured by the voltmeter is 75 V. The limiting error is in percentage

 2 %.
  2.66 %.
 1 %.
 3.33 %.

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

 1000 mWb.
 450 mWb.
 0.
 225 mWb.

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Measurement and Instrumentation
A moving iron ammeter produces a full scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self induction (μH/radian) of the instrument at full scale is

 4.8 μH/radian.
 12.0 μH/radian.
 114.6 μH/radian.
 2.0 μH/radian.

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Measurement and Instrumentation
In a moving coil instrument, the deflecting torque is proportional to

Square of the current
Sine of the measurand
Current
Squareroot of the current

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