EXAMIANS
Commonly used instruments in power system measurement are
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To measure ac as well as dc power, we use
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Jewels are used in instruments for the purpose of
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Which of following is a vector quantity?
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The dynamometer principle can be used for
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A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is
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What is the unit of plane angle?
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______ movement is most expensive.
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To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows
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The repeat accuracy of an instrument can be judged from its
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