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Measurement and Instrumentation
A moving coil permanent magnet instrument can be used as ______ by using a low resistance shunt.
Ballastic galvanometer
Voltmeter
Ammeter
Flux meter
Ballastic galvanometer
Voltmeter
Ammeter
Flux meter
Answer
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Related Question
Measurement and Instrumentation
The total current I = I1 + I2 in a circuit is measured as I1 = 150 ± 1A , I2 = 250 ± 2A, where the limits of error are as standard deviations. I is measured as
(400 ± 3) A
(400 ± 2.24) A
(400 ± 1.5) A
(400 ± 1) A
(400 ± 3) A
(400 ± 2.24) A
(400 ± 1.5) A
(400 ± 1) A
Answer
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Measurement and Instrumentation
The two pressure coils of a single phase power factor meter have
None of these
The same dimensions and the same number of turns
The same number of turns but different dimensions
The same dimension but different number of turns
None of these
The same dimensions and the same number of turns
The same number of turns but different dimensions
The same dimension but different number of turns
Answer
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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.
100.
110.
10.
11.
100.
110.
10.
Answer
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Measurement and Instrumentation
A galvanometer has
Eddy current damping
Air friction damping
Fluid friction damping
Spring coil damping
Eddy current damping
Air friction damping
Fluid friction damping
Spring coil damping
Answer
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Measurement and Instrumentation
What is the standard unit for length ?
Inch
Centimeter
Meter
Kilometer
Inch
Centimeter
Meter
Kilometer
Answer
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