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UPSC CSE Prelims Discriminating Confusable Entities — Physics & Chemistry Flashcards

Master 12 discriminating confusable entities — physics & chemistry concepts for the UPSC CSE Prelims.

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Question

Consider the following statements regarding electric current:

  1. Alternating Current (AC) reverses its direction periodically.
  2. The regular household electricity supply is primarily Direct Current (DC).

Which of the statements given above is/are correct?

Question

Complete the statement regarding power transmission.

For long-distance power transmission, is preferred over the other because its voltage can be efficiently stepped up or down using .

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