A single phase 60 Hz generator supplies an inductive load of 4500kW at a power factor of 0.80 lagging by means of a 20 km long overhead transmission line. The line resistance and inductance are 0.0195 ohm and 0.60 mH per km. The voltage at the receiving end is required to be kept constant at 10.2 kV. Find the voltage regulation of the line. 

(A) 12.59% (B) 16.34% (C) 32.68% (D) 41.15% 
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Can u tell me the name of book from which this problem has been taken?

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