How does electric field strength vary within a charged sphere?

The electric field strength within a charged sphere varies with distance from the centre.

As we move towards the centre of a charged sphere, the electric field strength increases. This is because the charge enclosed within the sphere also increases as we move towards the centre. According to Gauss's law, the electric field strength at any point inside a charged sphere is directly proportional to the charge enclosed within that point. Therefore, as we move towards the centre, the charge enclosed within that point increases, resulting in an increase in electric field strength.

However, once we reach the centre of the sphere, the electric field strength becomes zero. This is because the charge enclosed within the centre is zero, and therefore, according to Gauss's law, the electric field strength at that point is also zero.

As we move away from the centre of the sphere, the electric field strength decreases. This is because the charge enclosed within that point decreases as we move away from the centre. Therefore, according to Gauss's law, the electric field strength at that point also decreases.

Overall, the electric field strength within a charged sphere varies with distance from the centre, and is directly proportional to the charge enclosed within that point.