ECE :: Measurements and Instrumentation
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Two resistance R1 and R2 are connected in series R1 = 528 ± 5 Ω and R2 = 325 ± 3Ω. The total resistance will be
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The function of shunt in an ammeter is to
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Which of the following does not use the principle of change in inductance?
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It is necessary to measure the amplitudes of two signals and also the phase difference between them. This can be done by using a
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A sinusoidal signal is measured by CRO. The scale is set at 4 mV/cm. If vertical distance between positive and negative peaks is 6 cm, the peak value of ac signal is
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To avoid creep in an energy meter
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A wire strain gauge has a gauge factor of 2, resistance of 125 Ω and length 1 m. If length of wire changes by .005 m, change in resistance will be
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Four voltmeters have following specifications. If accuracy is main consideration which is the best?
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, Peak to peak value will be 24 mV.
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