EXAMIANS
The rectifier instrument is not free from
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The difference between the measured value and the true value is called
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A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is
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In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of
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Electrostatic instruments are normally used for
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Consider the following statements : In a measuring instrument, 1. Linearity is more important than sensitivity. 2. High precision indicates high accuracy 3. Accuracy cannot be better than resolution. Of these statements
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In a megger controlling torque is provided by
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The watt hour meter is ______ instrument.
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For measuring a very high resistance we should use
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In a ballistic galvanometer, the deflecting torque is proportional to
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