Download Aptitude Crack
img not found img not found

Alternating Current and Voltage - Technical MCQs

Q1:

Increasing the number of magnetic poles in a basic generator will ___.

A increase the generator's output voltage amplitude

B increase the generator's output frequency

C decrease the generator's output voltage amplitude

D decrease the generator's output frequency

ANS:B - increase the generator's output frequency

We have Ns=(120*f)/(p).

And p = (120*f)/(Ns).

Where Ns is sync speed.

f = freq.
p = no of poles.