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प्रश्न
At what voltage is the electric power from the generating station transmitted? Give reason to your answer.
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उत्तर
Electric power from the generating station is transmitted at 132 kV because a voltage higher than this causes insulation difficulties, while a voltage lower than this involves high current and loss of energy in the form of heat `(I^2Rt)`.
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संबंधित प्रश्न
Name the device used to increase the voltage at a generating station.
At what voltage and frequency is the electric power generated at the power generating station?
Name the device used to decrease the voltage at the substation for its supply.
- Name the three connecting wires used in a household circuit.
- Which of the two wires mentioned in part (a) are at the same potential?
- In which of the wire stated in part (a) the switch is connected?
What is the pole fuse? Write down its current rating.
What is the nature of current transmitted from the power station?
The voltage of power generated at the generating stations is first stepped up before its transmission. Give reason.
State the function of the following in a house circuiting of main fuse.
State the function of the following in a house circuiting of main switch.
At what frequency is the a.c. supplied to our houses?
