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Measurement and Instrumentation

Measurement and Instrumentation
Relative error is same as

 ratio of absolute error and true value.
None of these
 true error.
 absolute error.

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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?

100 K ohms
99.99 K ohms
100 ohms
99.99 ohms

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

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

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Measurement and Instrumentation
A resistor of 10kΩhms with 5% tolerance is connected in parallel with a 5kΩhms resistor of 10% tolerance. What is the tolerance limit for the parallel network?

8.33%
10%
6.67%
5%

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Measurement and Instrumentation
A DC potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18 V obtains balances at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf of test cell is

 1.34 V.
 1.7 V.
 1.5 V.
 1 V.

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Measurement and Instrumentation
A voltmeter using thermocouple measures

 Peak to peak value.
  rms value.
 Peak value.
 Average value.

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MORE MCQ ON Measurement and Instrumentation

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