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Manipal MET2018PhysicsAlternating Current

A transformer of 100 % efficiency has 200 turns in the primary and 40000 turns in secondary. It is connected to a 220 V main supply and secondary feeds to a 100 k resistance. The potential difference per turn is

Options

  1. A1.1 V
  2. B25 V
  3. C18 V
  4. D11 V

Correct answer

A. 1.1 V

Step-by-step solution

From transformer ratio aligned V_s V_p & = N_s N_p V_s & = V_p N_s N_p & = 220 40000 200 & =44000 ~V aligned Potential difference per turn is V_s N_s = 44000 40000 =1.1 ~V

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