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Measurement and Instrumentation

Measurement and Instrumentation
A galvanometer has

Eddy current damping
Fluid friction damping
Air friction damping
Spring coil damping

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Measurement and Instrumentation
Magnetic deflection is inversely proportional to

 (Voltage)2.
 Voltage.
 (Voltage)-0.5.
 (Voltage)1.5.

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Measurement and Instrumentation
The measured value of a resistance is 10.25 ohm, whereas its value of 10.22 ohm. What is absolute error of the measurement?

 10.26 ohm.
 0.01 ohm.
  0.03 ohm.
 15.36 ohm.

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Measurement and Instrumentation
What is the name of physical quantities which are independent of each other?

 Fundamental quantity
 Numerical quantity
None of these
 Derived quantity

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Measurement and Instrumentation
PMMC Instrument can be used for

None of the listed here
AC work only
Both AC and DC
DC work only

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Measurement and Instrumentation
Which of the following instruments can be used to measure AC current only?

Induction type ammeter
Permanent Magnet Type ammeter
Moving iron ammeter
Moving iron voltmeter

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