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AP EAMCET20224 Jul 2022Evening ShiftPhysicsCurrent ElectricityActual

The current ' i ' in the circuit shown in the figure is

Options

  1. Aε 2 R
  2. B- ε R
  3. C2 ε R
  4. D- 2 ε R

Correct answer

A. ε 2 R

Step-by-step solution

In the given question, Resistance in series with 2 ε is not given, assuming it to be R . The above circuit can be redrawn as, Using equivalent battery for the dotted portion shown in the figure below, ε e q = ε R + 2 ε R 1 R + 1 R = 1 . 5 ε and R e q = R 2 . Therefore, i = 3 - 1 . 5 ε 2 . 5 + 0 . 5 R = ε 2 R

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