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Measurement and Instrumentation

Measurement and Instrumentation
A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read

0 A
5 A
None of the listed here
2.5 A

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Measurement and Instrumentation
The use of thermocouple meters for AC measurement leads to scale which is

 square law.
 linear.
 expontial.
 logarithmic.

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Measurement and Instrumentation
The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ?

 ±3.5%
 ± 1%
 ± 1.5%
 ± 2.5%

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Measurement and Instrumentation
Resistance of a VARISTOR varies with

 Both Voltage and Temperature
 Current
 Voltage
 Temperature

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Measurement and Instrumentation
The thermocouple instrument will measure

Current
Voltage
Flux
None of these

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Measurement and Instrumentation
A voltage of 2.70 V is being measured by an analog indicating instrument having a scale range of 0 – 5.0 V. If the instrument reads 2.65 V, then absolute error in measurement is

 0.01V
 0.05V
 0.01V
 0.25V

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