Q. What happens to the frequency if the number of pairs of poles increases?

View solution

Q. Calculate the frequency if the number of revolutions is 300 and the paired poles are 50.

View solution

Q. Calculate the number of revolutions if the frequency is 15kHz and the paired poles are 50.

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. RMS stands for ________

View solution

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?

View solution

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

View solution

Q. What is the effective value of current?

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution