What is the charge on the outer surface of the shell?

-Q
3.113). Initially, the inner shell is uncharged,the middle shell has a positive charge Q, and the outer shell has a negative charge -Q.

Where is the charge on a non conducting sphere?

The charge enclosed by such Gaussian surface is zero. Hence, electric field at each point of Gaussian surface is zero. This is true for all Gaussian surfaces having radii between 0 to R where R is inner radius of the shell. Therefore electric field inside a uniformly charged non- conducting spherical shell is zero.

What is the charge on the outer surface of the outer sphere?

+1 C
Since the outer sphere has a net charge of -3 C, then +1 C gathers at the outer surface of the outer sphere.

What is the surface charge residing on the inner surface of the shell?

Since the Electric field vanishes everywhere inside the volume of a good conductor, its value is zero everywhere on the Gaussian surface we have considered. So the surface integral is zero. This is the total charge induced on the inner surface.

What charges reside on the inner and the outer surfaces of the outer shell?

(B) There can be no net charge inside the conductor, therefore the inner surface of the shell must carry a net charge of -Q1, and the outer surface must carry the charge +Q1 + Q2, so that the net charge on the shell equals Q2. Question 3.

What is electric field in non conducting sphere?

The electric field due to any body is directly proportional to the distance from the radius of the body. The electric field will be maximum at distance equal to the radius length and is inversely proportional to the distance for a length more than that of the radius of the sphere.

Where is the charge on a conducting shell?

6. A conducting spherical shell has inner radius r and outer radius R, as shown in the diagram. A point charge of −q is located at the center of the sphere and a charge of +Q is placed on the conducting shell.

How charges reside on the outer surface of conductors?

In order to establish this situation the charge given is distributed on the outer surface of the conductor such that the surface becomes equipotential which ensures that current even on the surface also becomes zero. Hence all the charges move as far away as possible, i.e. on the surface of the conductor.

Where do charges reside in a charged conductor?

The electric charges in a charged conductor reside on the surface of the conductor. This is because from the Coulomb’s law we know that the mutual repulsion between like charges demands that the charges be as far apart as possible, hence on the surface of the conductor.

What is conducting and non conducting shell?

The difference between a conducting and non-conducting sphere is that the charge is present only on the surface for a conducting sphere but for a non-conducting sphere, it is uniformly distributed. Due to the same reason, the electric field due to both spheres will be very different.

Why does the inner shell of a conductor have no charge?

No charge redistribution either, as the electric field inside the conducting shell is zero. No force is exerted on the electrons of the inner shell. But when we see (b)we get to know there is a case when inner shell does develop charges due to charges present on outer shell.

What is the electric field inside the conducting shell?

The electric field inside the conducting shell is zero. There can be no net charge inside the conductor Using Gauss’ Law it can be shown that the inner surface of the shell must carry a net charge of -Q 1 The outer surface must carry the charge +Q1 + Q2, so that the net charge on the shell equals Q2

What are the conditions for a non-conducting shell to conduct electricity?

The conditions can be interrelated. If the shell is non-conducting and the charges are fixed in place then bringing a charge near will not shift the charges on the shell, so their contribution to the field in the interior will still be nil. However, the field from the nearby charge will still fill all of space, including the interior of the shell.

What is the distribution of charge on the outer surface?

You know that the charge of the shell is distributed along the outer surface. With no electric field inside the wall, the inner surface of the shell and the cavity “does not know” anyting about the distribution of charge on the outer surface, either it is even or not. Charges on outer surface only for conductors or all charged bodies?