AP EAMCET201822 Apr 2018Morning ShiftPhysicsCapacitanceActual
Three uncharged capacitors of capacities C₁ , C₂ and C₃ are connected as shown in the figure. A, B and C are at potentials V₁, V₂ and V₃ , respectively, then the potential at O is
Options
- Azero
Correct answer
A. zero
Step-by-step solution
Total charge in the capacitors (accumulated at point O ) Q_ total =C₁ V₁+C₂ V₂+C₃ V₃ Total capacitance of the combination, C_ total =C₁+C₂+C₃( w.r.t. point O) So, potential at O , array r V= Q_ total C_ total = C₁ V₁+C₂ V₂+C₃ V₃ C₁+C₂+C₃ array