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Measurement and Instrumentation

Measurement and Instrumentation
Following is a 16-bit register for 8085 microprocessor

 Register B
 Accumulator
 Register C
 Stack pointer

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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

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

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Measurement and Instrumentation
A ______ device prevents the oscillation of the moving statem and enables the latter to reach its final position quickly

Controlling
None of the listed here
Deflecting
Damping

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Measurement and Instrumentation
The range of a moving iron ac ammeter is extended by

A multiplier
Changing number of turns of operating coil
None of the listed here
A shunt

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Measurement and Instrumentation
The smallest change in measured variable to which instrument will respond is

 precision.
 sensitivity.
  resolution.
 accuracy.

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Measurement and Instrumentation
The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is

 2 mA.
 3 mA.
 4 mA.
 1 mA.

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