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AP EAMCET202021 Sep 2020Evening ShiftPhysicsAlternating CurrentActual

The primary of a transformer has 100 turns and operates at (100 ~V -200 ~W ). The number of turns in the secondary, if the output voltage is (2000 ~V ), then

Options

  1. A2000
  2. B200
  3. C100
  4. D500

Correct answer

A. 2000

Step-by-step solution

For a transformer, it is given that, (N_P=100 ), (V_P=100 ~V , V_S=2000 ~V ) We know that, ( aligned & N_S N_P = V_S V_P & N_S= V_S N_P V_P = 2000 100 100 =2000 aligned )

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