BITSAT2010PhysicsElectrostaticsActual
Two metallic spheres of radii 1 ~cm and 3 ~cm are given charges of -1 10⁻² C and 5 10⁻² C , respectively. If these are connected by a conducting wire, the final charge on the bigger sphere is
Options
- A2 10⁻² C
- B3 10⁻² C
- C4 10⁻² C
- D1 10⁻² C
Correct answer
B. 3 10⁻² C
Step-by-step solution
k x 1 ~cm = k(Q-x) 3 ~cm 3 x=Q-x 4 x=Qx= Q 4 = 4 10⁻² 4 C=1 10⁻²Q^ = Q -x=3 10⁻² C