Q. Calculate the number of paired poles if the frequency id 15kHz and the number of revolutions is 300.

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Q. What is the frequency of a two pole machine having n=50?

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Q. What is the minimum number of poles that a machine must have __________

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Q. Find the average value of current when the current that are equidistant are 4A, 5A and 6A.

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Q. What is the current found by finding the current in an equidistant region and dividing by n?

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Q. RMS stands for ________

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Q. What is the type of current obtained by finding the square of the currents and then finding their average and then fining the square root?

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Q. __________ current is found by dividing the area enclosed by the half cycle by the length of the base of the half cycle.

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Q. What is the effective value of current?

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Q. In a sinusoidal wave, average current is always _______ rms current.

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Q. For a rectangular wave, average current is ______ rms current.

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Q. Peak value divided by the rms value gives us?

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Q. Calculate the crest factor if the peak value of current is 10A and the rms value is 2A.

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Q. If maximum value of current is 5√2 A, what will be the value of RMS current?

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Q. If Im is the maximum value of a sinusoidal voltage, what is the instantaneous value?

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Q. Average value of current over a half cycle is?

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Q. What is the correct expression for the rms value of current?

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Q. Average value of current over a full cycle is?

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Q. What is the correct expression for the form factor?

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Q. For a direct current, the rms current is ________ the mean current.

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