MHT CET202310 May 2023Evening ShiftPhysicsElectrostaticsActual
If a capacitor of capacity 900 F is charged to 100 ~V and its total energy is transferred to a capacitor of capacity 100 F , then its potential will be
Options
- A30 ~V
- B200 ~V
- C300 ~V
- D400 ~V
Correct answer
C. 300 ~V
Step-by-step solution
Let the unknown potential be V _ u Energy of a capacitor = 1 2 CV ^2 array ll & 1 2 C₁ V₁^2= 1 2 C₂ (V_u )^2 & 1 2 900 10⁻⁶ (100)^2= 1 2 100 10⁻⁶ (V_u )^2 & (V_u )^2=9 100^2 & V_u=300 ~V array