AP EAMCET202420 May 2024Morning ShiftPhysicsElectrostaticsActual
Two spheres A & B of radii 4 ~cm & 6 ~cm are given charges of 80 C & 40 C respectively. If they are connected by a fine wire, the amount of charge flowing from one to the other is
Options
- A32 C from B to A
- B32 C from A to B
- C20 C from A to B
- D16 C from B to A
Correct answer
B. 32 C from A to B
Step-by-step solution
Q ₁=80 C , Q ₂=40 C r ₁=4 ~cm , r ₂=6 ~cm After connecting wire, Q ₁^ = ( r ₁ r ₁+ r ₂ ) ( Q ₁+ Q ₂ )= ( 4 4+6 )(80+40)=48 C Charge flow from A to B is Q = Q ₁- Q ₁^ =80-48=32 C