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BITSAT2013PhysicsCurrent ElectricityActual

In the circuit shown in figure potential difference between points A and B is 16 ~V . the current passing through 2 resistance will be

Options

  1. A2.5 ~A
  2. B3.5 ~A
  3. C4.0 ~A
  4. Dzero

Correct answer

B. 3.5 ~A

Step-by-step solution

4 i ₁+2 ( i ₁+ i ₂ )-3+4 i ₁=16 ~V Using Kirchhoff's second law in the closed loop we have 9-i₂-2 (i₁+i₂ )=0 Solving equations (i) and (ii), we get i ₁=1.5 ~A and i ₂=2 ~A current through 2 ~W resistor =2+1.5=3.5 ~A

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