Considering a Gaussian surface in the form of a sphere at radius r > R, the electric field has the same magnitude at every point of the surface and is directed outward. The electric flux is then just the electric field times the area of the spherical surface.
What is the electric field due to a solid sphere?
In that formula we will put (r=R) , so evaluate the electric field on the surface of the sphere . E=14πε0×qrR3E=14πε0×qRR3E=14πε0×qR2. This is the electric field on the surface.
What is the electrostatic field at the surface of the solid sphere?
“Thus the field at the surface of the shell is exactly the same as though all the charge Q were located at the center of the sphere defined by the shell.” Therefore, the strength of the electric field at the surface should be kQ/R2.
What is the electric field intensity inside a solid conducting sphere?
Explanation: As the charges on a conductor are confined to its surface and no charge is enclosed inside the sphere. As the charge is zero inside the conductor, hence the electric flux is zero inside the conductor and thus, the Electric field intensity is zero inside the conductor.
Why is electric field inside a sphere 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 inclosed by the spherical shell is zero, so there will not be any electric field present inside the spherical shell.
Why electric field inside a conducting solid sphere is zero?
If point P is placed inside the solid conducting sphere then electric field intensity will be zero at that point because the charge is distributed uniformly on the surface of the solid sphere so there will not be any charge on the Gaussian surface and electric flux will be zero inside the solid sphere. i.e.
Is electric field zero inside a sphere?
The electric field is zero inside a conducting sphere. The electric field outside the sphere is given by: E = kQ/r2, just like a point charge. The excess charge is located on the outside of the sphere.
What is K in electric field?
The Coulomb constant, the electric force constant, or the electrostatic constant (denoted ke, k or K) is a proportionality constant in electrostatics equations. In SI units it is equal to 8.9875517923(14)×109 kg⋅m3⋅s−2⋅C−2.
Is there an electric field inside an insulator?
We define a conductor as a material in which charges are free to move over macroscopic distances—i.e., they can leave their nuclei and move around the material. An insulator is anything else. … There can be no electric field inside a conductor.
What is the electric field inside a nonconducting sphere?
As there is no charge inside the cavity, no charge is enclosed by Gaussian sphere, so electric flux is zero, hence electric field is zero.
Which is not deflected by electric field?
Alpha particles are positively charged as they have two protons and two neutrons. … This means that alpha and beta radiation can be deflected by electric fields, but gamma radiation cannot. Hence the types of waves that cannot be deflected by an electric field or a magnetic field are gamma rays.
Why is electric potential constant inside 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 the electric potential inside a conductor zero?
The electric field inside every conductor is ZERO ( when the arrangement remain as it is and in both above cases ) because the electric field due to induced charges is equal and opposite to electric field due to ‘inducing charge +Q’ at each and every point inside conductor.
What is electric field intensity?
A measure of the force exerted by one charged body on another. Imaginary lines of force or electric field lines originate (by convention) on positive charges and terminate on negative charges.