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The primary winding of a transformer has 100 turns and its secondary winding has 200 turns. The primary is connected to an AC supply of 120 V and the current flowing in it is 10 A. The voltage and the current in the secondary are

Options

  1. A240 V, 5 A
  2. B240 V, 10 A
  3. C60 V, 20 A
  4. D120 V, 20 A

Correct answer

A. 240 V, 5 A

Step-by-step solution

E s E p = n s n p o r E s = E p × n s n p ∴ E s = 120 × 200 100 = 240 V I p I s = n s n p o r I s = I p n p n s ∴ I s = 10 100 200 = 5 A

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