Home PYQs UPPSC UPPSC MCQs Prelims 2006 (GS Paper I)

Question

Transformer is used for

  1. Converting AC into DC
  2. Converting DC into AC
  3. To step up DC voltages
  4. To step up or step down AC voltages

Answer:

Option D: To step up or step down AC voltages

Detailed Solution:

The correct answer is “To step up or step down AC voltages”.

Transformers are primarily used to either increase (step up) or decrease (step down) alternating current (AC) voltages while keeping the frequency constant.