If the sphere is uniformly charged and you are outside of the sphere, the potential is the same as that of a point charge. The electric potential at the surface of the sphere (whether conducting or non-conducting and Solid or Hallow surface) is KQ/R ,where Q is the total charge on sphere and R being its radius.
How do you find the potential of a sphere?
A spherical sphere of charge creates an external field just like a point charge, for example. The equation for the electric potential due to a point charge is V=kQr V = kQ r , where k is a constant equal to 9.0×109 N⋅m2/C2.
What is the electric potential of a sphere?
When a conductor is at equilibrium, the electric field inside it is constrained to be zero. Since the electric field is equal to the rate of change of potential, this implies that the voltage inside a conductor at equilibrium is constrained to be constant at the value it reaches at the surface of the conductor.
What is the potential inside a solid sphere?
From a solid sphere of mass M and radius R, a spherical portion of radius (2R) is removed as shown in the figure. Taking gravitational potential V=0 at r=∞, the potential at the centre of the cavity thus formed is (G=garvitational constant)
What is the potential of solid sphere?
What is the electric potential at the centre of sphere? – Quora. Here, I’m assuming, it is a uniformly charged solid sphere. The answer will be 3kQ/2R or 1.5kQ/R.
Why is electric potential inside a sphere not zero?
Since all the charge is distributed on the surface of the spherical shell so according to Gauss law there will not be any electric flux inside the spherical shell, because the charge enclosed by the spherical shell is zero, so there will not be any electric field present inside the spherical shell.
Why is potential constant in a sphere?
The reason is, in case of conducting sphere electric field do not penetrate inside the sphere so there is no variation of electric field inside a conducting sphere, so work done in moving an object in a closed path is zero inside a conducting sphere and that’s why electric potential Inside a conducting sphere is zero.
Is electric potential positive or negative?
Note that the electrical potential energy is positive if the two charges are of the same type, either positive or negative, and negative if the two charges are of opposite types. This makes sense if you think of the change in the potential energy ΔU as you bring the two charges closer or move them farther apart.