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Measurement and Instrumentation

Measurement and Instrumentation
Which amplifier in used in an electronic amplifier?

 Differential amplifier.
 Wideband amplifier.
 Power amplifier.
 Butter amplifer.

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Measurement and Instrumentation
Magnetic deflection is inversely proportional to

 (Voltage)1.5.
 Voltage.
 (Voltage)-0.5.
 (Voltage)2.

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Measurement and Instrumentation
Ryall crest voltmeter is used for measurement of

AC voltage of any form
High AC voltage
High DC voltage
Low frequency voltage

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Measurement and Instrumentation
The current ‘I’ through a resistance R is measures with the following uncertainties I = 4 A ± 0.5%, R = 100Ω±0.2%. If power is computed from these two measured quantities, the uncertainty in the power computed will be

 1.5%
 1.2%
 1%
 0.5%

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Measurement and Instrumentation
Standard resistor ia made from

Silver
Manganin
Nichrome
Platinum

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Measurement and Instrumentation
The two pressure coils of a single phase power factor meter have

The same dimension but different number of turns
The same dimensions and the same number of turns
None of these
The same number of turns but different dimensions

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