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Measurement and Instrumentation

Measurement and Instrumentation
The multiplier and the meter coil in a voltmeter are in

Parallel
None of the listed here
Series
Series-parallel

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Measurement and Instrumentation
Which one the following statements is correct? The application of the instrument in wrong manner in the procedure of measurement results in a/an

 instrument error
 gross error
 systematic error
 random error

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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.

 2
 1
 4
 5

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Measurement and Instrumentation
A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is

 25 V.
 100 V.
 50 V.
 200 V.

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Measurement and Instrumentation
If an inductance is connected in one arm of the bridge and resistance is the remaining three arms

None of the listed here
The bridge can be balanced if the resistance have some specific values
The bridge can always be balanced
The bridge cannot be balanced

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Measurement and Instrumentation
A 0 - 250V voltmeter has a guaranteed accuracy of 2% of full scale reading. What is the percentage of error if it measures 150V?

 3.33%
 2%
 5%
 1%

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