KCET2024PhysicsCurrent Electricity
In the circuit shown, the end A is at potential V₀ and end B is grounded. The electric current I indicated in the circuit is
Options
- AV₀ / R
- B2 V₀ / R
- C3 V₀ / R
- DV₀ / 3 R
Correct answer
D. V₀ / 3 R
Step-by-step solution
1st and 2nd networks form balanced Wheatstone bridge. Hence, circuit diagram can be redrawn as R_ A R =2 R |2 R+4 R | 4 R= 2 R 2 R 2 R+2 R + 4 R 4 R 4 R+4 R =R+2 R=3 R I= V₀ R_ A B = V₀ 3 R