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Measurement and Instrumentation

Measurement and Instrumentation
No eddy current and hysteresis losses occur in

Moving iron instruments
PMMC instruments
Electrostatic instruments
Electrodynamo meter instruments

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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

 50 V.
 25 V.
 200 V.
 100 V.

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Measurement and Instrumentation
For a circuit given that I = 2 ± 5 % A, R = 100 ± 0.2 % Ω the limiting error in the power dissipation I2 R in the resistor R is

 1.2%
 10.2%
 25.2%
 5.2%

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Measurement and Instrumentation
The internal resistance of Weston standard cell is of order of

 10 ohm.
 1 ohm.
 1000 ohm.
 100 ohm.

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Measurement and Instrumentation
Which of the two have same dimensions?

 Force and strain
 Force and stress
 Angular velocity and angular frequency
None of these

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Measurement and Instrumentation
What is the expression for momentum?

 change of velocity / time
 mass × acceleration
 force × displacement
 mass × velocity

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MORE MCQ ON Measurement and Instrumentation

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