Power Generation and Transmission
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Questions and Answers

Why is the voltage of electric power raised before transmission?

  • To generate alternating voltage
  • To improve insulation difficulties
  • To reduce energy loss in the transmission line wires (correct)
  • To increase the current

    • Which voltage is used for generating electric power at the power generating stations?

  • Lower than 11 kV
  • Varies depending on the location
  • Higher than 11 kV
  • 11 kV (correct)

    • Why is it not possible to step up or step down DC voltage?

  • DC voltage does not require stepping up or down
  • DC voltage is not suitable for transmission
  • DC voltage cannot be easily converted (correct)
  • DC voltage is not used for electric power generation

    • What happens to the current when the voltage is increased?

    <p>The current decreases</p> Signup and view all the answers

    What is the frequency of the generated voltage?

    <p>50 Hz</p> Signup and view all the answers

    Which voltage is used for generating electric power at the power generating stations?

    <p>11 kV</p> Signup and view all the answers

    Why is the voltage of electric power raised before transmission?

    <p>To reduce the loss of energy in the transmission line wires</p> Signup and view all the answers

    What is the frequency of the generated voltage?

    <p>50 Hz</p> Signup and view all the answers

    Why is it not possible to step up or step down DC voltage?

    <p>DC voltage cannot be easily converted to higher or lower voltages</p> Signup and view all the answers

    What happens to the current when the voltage is increased?

    <p>The current decreases</p> Signup and view all the answers

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