ECE :: Measurements and Instrumentation
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Gauge factor of a strain gauge is
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Assertion (A): Capacitance effect can be used to measure thickness of sheets, displacement and pressure.
Reason (R): Capacitance between two plates depends on the area of plates, distance between plates and permittivity of medium.
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The total insulation resistance consists of insulation volume resistance and surface leakage resistance.
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Assertion (A): Energy meters use induction principle.
Reason (R): Induction wattmeter is less accurate than a dynamometer wattmeter.
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A dynamometer wattmeter can be used for
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If low pressure of 10-6 mm of Hg is required to be measured, we should use
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A transducer must have
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If two time varying signals of equal magnitude and zero phase displacement are applied to X and Y plates respectively; of CRO, the display will be
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Wagner earthing device is used to eliminate error due to
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RTD is generally suitable for temperature up to
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