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Manipal MET2010PhysicsAlternating Current

The number of turns in primary coil of a transformer is 20 and the number of turns in the secondary is 10 . If the voltage across the primary is 220 V , what is the voltage across the secondary?

Options

  1. A110 V
  2. B130 V
  3. C190 V
  4. D310 V

Correct answer

A. 110 V

Step-by-step solution

Given, N_P=20, N_S=10, e_P=220 ~V Transformation ratio, k e_S e_P = N_S N_P or e_S= N_S N_P e_P= 10 20 220=110 ~V

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