Question

(a) At what voltage is the electric power from the generating station transmitted? Give a reason for your answer.

(b) What is the nature of the current transmitted from the power station?

Answer 1

(a) Electric power from the generating station is transmitted at 11 kV because a voltage higher than this causes insulation difficulties, while the voltage lower than this involves high current and loss of energy in form of heat $\left(I^{2}Rt\right)$.

(b) Current is transmitted as AC or Alternating current.