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Measurement and Instrumentation

Measurement and Instrumentation
Relative error is same as

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

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Measurement and Instrumentation
Dynamic errors are caused by

 environmental error
 human error
 observational error
 instrument not responding fast

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Measurement and Instrumentation
The three resistors R1, R2 and R3 have the following ratings: R1 = 25Ω ± 4%, R2 = 65 Ω ± 4%; R3 =45 Ω ± 4%. If the resistance are connected in series, then limiting error produced in equivalent resistance is

 3%
 4%
 1%
 2%

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Measurement and Instrumentation
The quantity 1/√(∈0 × μ0) in SI units has the

 dimension LT-1.
 speed of light.
 none of these.
 both ‘a’ and ‘b’.

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Measurement and Instrumentation
The disc of an instrument using eddy current damping should be of

Conducting and magnetic material
None of the listed here
Conducting and non magnetic material
Non conducting and magnetic material

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Measurement and Instrumentation
Induction type single phase energy meters measure electric energy in

kWh
Wh
VAR
kW

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