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For long-distance transmission, the transformer used is

Correct answer: C. Step up

  • A. Step down
  • B. Input voltage and output voltage remain the same
  • C. Step up
  • D. Amplifier is used

Explanation

For long-distance transmission of electrical power, it is more efficient to use high voltage (low current) to minimize power losses in the transmission lines. Step-up transformers are employed to increase the voltage at the transmitting end, and step-down transformers are used at the receiving end to bring the voltage back to a usable level.

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