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Measurement and Instrumentation

Measurement and Instrumentation
Relative error is same as

 absolute error.
 true error.
None of these
 ratio of absolute error and true value.

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Measurement and Instrumentation
The repeat accuracy of an instrument can be judged from its

Standard deviation of error
Static error
Linearity error
Dynamic error

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Measurement and Instrumentation
For the AC bridge circuit shown in figure at balance the value of Rd will be

 (Ra/Rc).Rb.
 (Rc/Ra).Rb.
 (Rb/Rc).Ra.
 (Rc/Rb).Ra.

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Measurement and Instrumentation
______ movement is most expensive.

D'Arsonval movement
Moving iron
None of the listed here
Dynamometer

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Measurement and Instrumentation
The error of an instrument is normally given as a percentage of

Rms value
Measured value
Full-scale value
Mean value

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Measurement and Instrumentation
The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ?

 ± 1.5%
 ±3.5%
 ± 3.0%
 ±0.5%

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