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In the given circuit the reading of ideal voltmeter is E/2. The internal resistance of the battery is

Options

  1. A1
  2. B2 3
  3. C2 5
  4. D5 2

Correct answer

A. 1

Step-by-step solution

E 2 =E-i r i = E 2 r ....(i) 2 E=i(3+r) .....(ii) r =1

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