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Measurement and Instrumentation

Measurement and Instrumentation
A null type instrument as compared to a deflected type instrument has

 a faster response.
 a lower sensitivity.
All of these
 a higher accuracy.

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Measurement and Instrumentation
The two pressure coils of a single phase power factor meter have

The same dimensions and the same number of turns
None of these
The same dimension but different number of turns
The same number of turns but different dimensions

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

 450 mWb.
 0.
 1000 mWb.
 225 mWb.

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Measurement and Instrumentation
Dynamic errors are caused by

 human error
 observational error
 environmental error
 instrument not responding fast

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Measurement and Instrumentation
A 10MHz CRO has

10MHz supply frequency
10MHz vertical oscillator
10MHz horizontal oscillator
5MHz sweep

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Measurement and Instrumentation
The inductance of a certain moving iron ammeter is expressed as L = 2+5θ-θ2 µH. The control spring torque is 2 × 10-6 Nm/radian. Find the deflection in radians for a current of 2A.

 5
 2
 4
 1

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