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Measurement and Instrumentation

Measurement and Instrumentation
Following is a 16-bit register for 8085 microprocessor

 Register C
 Stack pointer
 Accumulator
 Register B

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Measurement and Instrumentation
A galvanometer with a full scale current of 10 mA has a resistance of 1000 Ω. The multiplying power (the ratio of measured current to galvanometer current) of 100 Ω shunt with this galvanometer is

 11.
 110.
 10.
 100.

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Measurement and Instrumentation
Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are

One of the meters out of the range and other 100V
300V each
400V and 200V
360V and 240V

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Measurement and Instrumentation
A set of independent current measurements taken by four observers was recorded as : 117.02 mA, 117.11 mA, 117.08 mA and 117.03 mA. What is the range of error ?

 ± 0.054
 ± 0.045
 ± 0.065
 ± 0.056

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Measurement and Instrumentation
The effect of load resistance is important in measurement of

 resistance of shunt winding.
 resistance of shunt.
 resistance of ammeter.
 both A and B.

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Measurement and Instrumentation
An ammeter is a

Absolute instrument
Integrating instrument
Secondary instrument
Recording instrument

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