The primary of 1000/250 v step-down transformer has a resistance of 0.15Ω and leakage reactance of 0.8Ω. Find the primary induced emf when the primary current is 60A at 0.8 pf lagging.
If the numerator of fraction is increased by 200% and the denominator is increased by 350%. The resultant fraction is What was the original fractions?