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Measurement and Instrumentation

Measurement and Instrumentation
A voltmeter has 100 scale divisions and can measure up to 100 V. Each division can be read to ½ division. The resolution of the voltmeter is

 1.5 V
 2 V
 0.5 V
 1 V

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Measurement and Instrumentation
Resistances can be measured with the help of

Voltmeters
Ohmmeters and resistance bridges
Ammeters
Wattmeters

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Measurement and Instrumentation
A 0 - 100 V voltmeter has a guaranteed accuracy of 2 % of full scale reading. The voltage measured by the voltmeter is 75 V. The limiting error is in percentage

 3.33 %.
 1 %.
  2.66 %.
 2 %.

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Measurement and Instrumentation
A slide wire potentiometer has 10 wires of 1 m each. With the help of a standard voltage source of 1.018 V it is standardised by keeping the jockey at 101.8 cm. If the resistance of the potentiometer wires is 1000 ohm, then the value of the working current will be

 10 mA.
 0.5 mA.
 1mA.
 100 mA.

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

 1000 ohm.
 100 ohm.
 1 ohm.
 10 ohm.

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Measurement and Instrumentation
The difference between the measured value and the true value is called

 relative error
 gross error
 absolute error
 probable error

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MORE MCQ ON Measurement and Instrumentation

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