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Measurement and Instrumentation

Measurement and Instrumentation
Which of the following meter is most suitable for measuring radio frequency currents?

 Moving - iron meter.
  Thermocouple meter.
 Moving - coil meter.
 VTVM.

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Measurement and Instrumentation
The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. This is to have full deflection when 100V is measured. What is the value of series resistor to be used?

99.99 K ohms
99.99 ohms
100 K ohms
100 ohms

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Measurement and Instrumentation
In eddy current damping, disc or former is made of a material that is a

Non conductor and non magnetic
Non conductor but magnetic
Conductor but magnetic
Conductor but non magnetic

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Measurement and Instrumentation
Which of the quantity consists of unit as newton-second?

 Acceleration
 Impulse
 velocity
 Speed

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

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

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Measurement and Instrumentation
The internal resistance of a milli-ammeter must be very low for

 high sensitivity.
 high accuracy.
 high precision.
 minimum effect on the current in the circuit.

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MORE MCQ ON Measurement and Instrumentation

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