<p>The primary of a transformer has 200 turns and the secondary has 1000 turns. If the power output from the secondary at 1000V is 9kW. Calculate (i) the primary voltage and (ii) the heat loss in the primary coil if the resistance of primary is 0.2<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>&#937;</mi></math>&nbsp;and the efficiency of the transfomer is 90%</p>