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A generator has armature resistance of 0.1 and develops an induced emf of 120 ~V when driven at its rated speed. Its terminal voltage when a current of 50 ~A is being drawn is

Options

  1. A120 ~V
  2. B5 ~V
  3. C115 ~V
  4. D70 ~V

Correct answer

C. 115 ~V

Step-by-step solution

Armature resistance R=0.1 Induced emf, e=120 ~V Current drown, I=50 ~A We know that, e=V+I R or, V=e-I R=120-50 0.1=115 ~V

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