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JEE Main20206 Sep 2020Evening ShiftPhysicsCurrent ElectricityActual

In the figure shown, the current in the 10 V battery is close to :

Options

  1. A0 . 71   A from positive to negative terminal
  2. B0 . 42   A from positive to negative terminal
  3. C0 . 21   A from positive to negative terminal
  4. D0 . 36   A from negative to postive terminal

Correct answer

C. 0 . 21   A from positive to negative terminal

Step-by-step solution

- 5 i 2 - 10 i 1 + i 2 - 2 i 2 + 20 = 0 - 10 i 1 - 17 i 2 + 20 = 0 - 10 + 4 i 1 + 10 i 1 + i 2 = 0 14 i 1 + 10 i 2 + 10 = 0 10 i 1 + 17 i 2 = 20 → × 10 14 i 1 + 10 i 2 = 10 → 17 - 138 i 1 = 30 i 1 = - 30 138 = - 0 . 217 i 1 is negative it means current flows from positive to negative terminal

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