Slip equation using stroboscopic method

Q.  What is the slip equation using stroboscopic method?
- Published on 30 Sep 15

a. Slip = (apparent rpm / 120 ) * pair of poles
b. Slip = (apparent rpm / 60 ) * pair of poles
c. Slip = (apparent rpm / 150 ) * pair of poles
d. Slip = (apparent rpm / 30 ) * pair of poles

ANSWER: Slip = (apparent rpm / 60 ) * pair of poles

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