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Physics · May / June 2022 · Paper 12 · Question 40

5054The transformer

Electrical power is transmitted by cables over long distances at very high voltages. What are the effects of using a high voltage transmission system?

  1. Ahigh power loss in the cables, high current in the cables
  2. Bhigh power loss in the cables, low current in the cables
  3. Clow power loss in the cables, high current in the cables
  4. Dlow power loss in the cables, low current in the cables

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Correct answer: D. low power loss in the cables, low current in the cables

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