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Why is electrical energy transmitted at ...

Why is electrical energy transmitted at high voltage from a distant power generating station ?

Text Solution

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(i) Relative motion between coil and the magnet.
(ii) Varying magnetic field - Induced emf.
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Knowledge Check

  • To transmit electrical energy from a generator to distant consumers __

    A
    high voltage and low current are transmitted
    B
    high voltage and high current are transmitted
    C
    low voltage and low current are transmitted
    D
    low voltage and high current are transmitted

  • Electrical energy is transmitted over large distances at high alternating voltages. Which of the following statements is (are) correct?

    A
    For a given power level, there is a lower current.
    B
    Lower current implies less power less.
    C
    Transmission lines can be made thinner.
    D
    It is easy reduce the voltage at the receving end using step-down transformers

  • Electric power is transferred at high potential because

    A
    it stops wire thefts
    B
    it-minimizes power loss
    C
    generators give power at high potential only
    D
    power is transformed quickly at high potential

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    For transporting elecrtic power, what is required at the generating station ?

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    Electric power is transferred at high potential because

    A: Electrical power through transmission lines is transmitted at high voltage. R: At high voltage theft of power is checked.

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