Two spheres of radii R1 and R2 (R2 > R1) are connected by a conduct...
Understanding Charge Distribution and Potential
When two conducting spheres are connected by a wire, charge redistributes between them until they reach the same electric potential.
Key Concepts:
- Conductors and Electric Potential:
- Conductors allow free movement of charge. When connected, they equalize their potentials.
- Relation of Charge, Radius, and Potential:
- The electric potential (V) of a sphere is given by V = k * Q/R, where Q is the charge, R is the radius, and k is a constant.
- For two spheres with the same charge q, the potentials would be:
- V1 = k * q / R1 for sphere 1
- V2 = k * q / R2 for sphere 2
Equilibrium of Potential:
- Since R2 > R1, initially, V1 (potential of smaller sphere) would be greater than V2 (potential of larger sphere) due to the inverse relationship between potential and radius.
- Once the spheres are connected, charge flows until V1 = V2. This occurs because the charge will redistribute in such a way that both spheres attain the same potential.
Conclusion:
- Therefore, the final potential of both spheres will be equal when they are connected by a conducting wire, leading to the correct answer being option 'C'.
In summary, the connection allows for charge redistribution, ensuring both spheres maintain the same electric potential despite their different sizes.
Two spheres of radii R1 and R2 (R2 > R1) are connected by a conduct...
Concept:
Flowing of charge does not depend upon the charge amount or size of the two bodies.
If there is an electric potential difference there will be a flow of charge, if no potential difference, there will not be a flow of charge i.e. current flow is not possible.
Thus, in all electrical circuits when the current flows, it means there is an electrical potential difference between two points.
Application:
Two spheres of radii R
1
and R
2
(R
2
> R
1
) are connected by a conducting wire. Each of the spheres has been given a charge q.
Now
Potential of both the spheres will be equal
because of both sphere has the same charge.
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