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Measurement and Instrumentation

Measurement and Instrumentation
A 10MHz CRO has

10MHz vertical oscillator
10MHz supply frequency
10MHz horizontal oscillator
5MHz sweep

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Measurement and Instrumentation
Which of the following essential featuresis possessed by an indicating instrument?

Controlling device
Damping device
All of the listed here
Deflecting device

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Measurement and Instrumentation
In a dynamometer wattmeter, the moving coil is the

Potential coil
None of the listed here
Current coil
Current coil and potential coil

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Measurement and Instrumentation
If two meters X and Y require 40 mA and 50 mA respectively, to give full scale deflection, then

 X is more sensitive.
 Y is more sensitive.
 Both X and Y are equally sensitive.
 It would not be possible to assess the sensitivity on the basis of the given data.

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Measurement and Instrumentation
In an Anderson bridge, the unknown inductance is measured in terms of

Known resistance
Known inductance
Known capacitance and resistance
Known inductance and resistance

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Measurement and Instrumentation
In a moving coil instrument, the deflecting torque is proportional to

Sine of the measurand
Squareroot of the current
Current
Square of the current

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