Physics
(a) At what voltage is the electric power from the generating station transmitted? Give reason to your answer.
(b) What is the nature of current transmitted from the power station?
Answer
(a) At the generating station, the electric power is generated at a voltage of 11 kV because generation at voltage higher than 11 kV causes insulation difficulties, while generation at voltage lower than 11 kV involves a very high current.
Hence, electric power from the generating station is transmitted at 11 kV.
(b) The nature of current transmitted from the power station is alternating current (a.c.).
Related Questions
State the function of each of the following in a house circuiting —
(a) kWh meter, (b) main fuse, and (c) main switch
In the transmission of power the voltage of power generated at the generating station is stepped up from 11 kV to 132 kV before it is transmitted. Why ?
What is the pole fuse? Write down it's current rating.
(a) Name the three connecting wires used in a household circuit.
(b) Which of the two wires mentioned in part (a) are at the same potential?
(c) In which of the wire stated in part (a) the switch is connected?