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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
2.5 A
5 A
None of the listed here

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Measurement and Instrumentation
An induction wattmeter can be used for

Any of the listed here
Both DC and AC
Ac only
Dc only

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Measurement and Instrumentation
If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then

 V1 = 250V and V2 = 250V.
 V1 = 300V and V2 = 200V.
 V1 = 200V and V2 = 300V.
 V1 = 0V and V2 = 0V.

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Measurement and Instrumentation
Electrostatic instruments are used as

Wattmeter only
Both ammeter and voltmeter
Ammeters only
Voltmeters only

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Measurement and Instrumentation
Direct method is used to measure

Voltage
Length
Pressure
Temperature

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Measurement and Instrumentation
An ammeter of range 0-25 A has a guaranteed accuracy of 1% of full-scale reading. The current measured by the ammeter is 5 A. The limiting error in the reading is

 5%
 6%
 3%
 4%

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