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A resistor R is connected to a parallel combination of two identical batteries each with emf E and an internal resistance r . The potential drop across the resistance R is

Options

  1. A2 E R 2 R+r
  2. BE R R+2 r
  3. CE R 2 R+r
  4. D2 E R R+2 r

Correct answer

A. 2 E R 2 R+r

Step-by-step solution

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