what is the electrical potential at the center of a charge carrying sphere
Question
what is the electrical potential at the center of a charge carrying sphere
Solution
The electrical potential at the center of a charge carrying sphere can be calculated using the formula for the electric potential due to a point charge.
Step 1: Understand the problem We are asked to find the electric potential at the center of a sphere that carries a charge. The sphere is symmetrical, so the charge is distributed evenly across its surface.
Step 2: Identify the formula The formula for the electric potential (V) due to a point charge (Q) at a distance (r) is given by:
V = kQ/r
where k is Coulomb's constant (8.99 x 10^9 N m^2/C^2).
Step 3: Apply the formula In this case, we are asked to find the potential at the center of the sphere. This means that the distance r is equal to the radius of the sphere.
However, because we are at the center of the sphere, the contributions to the electric potential from all the infinitesimal charges cancel each other out due to symmetry. Therefore, the electric potential at the center of a uniformly charged sphere is zero.
This is true regardless of whether the sphere is conducting or non-conducting, and whether the charge is spread out over the surface of the sphere or throughout its volume.
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