An electrical power line, having a total resistance of 2Ω, delivers  1  kW at 220 V. The efficiency of the transmission line is approximately.

Current=i=PV=1000220A​⇒power loss =100022022=10000242WEfficiency =n=PoutPin×100 ⇒n=PoutPout+Ploss×100​⇒n = 1000010000+10000242×100%=99.6%≈96%closest option