What is an uncharged conducting sphere?

A hollow uncharged spherical conducting shell has an inner radius a and an outer radius b. A positive point charge q is in the cavity at the center of the sphere. The field due to a spherically symmetric charge distribution can be found from Gauss’ law. The inside of a conductor is field free in electrostatics.

Why is the charge inside a sphere zero?

It is because charge doesn’t reside inside it, it moves outside the surface of it producing electric field inside zero. Because at any point inside the spherical shell the total charge enclosed is zero.

What will happen if two uncharged objects are placed close to each other?

When two neutral objects come into contact–especially in a dry environment–electrons can be knocked loose from one object and picked up by the other. The object that gains electrons becomes negatively charged, while the object that loses electrons becomes positively charged.

What happens to the electrical charges when a charged metal rod is placed near the Electroscope?

When the negatively-charged rod is brought close to the electroscope, positive charges are attracted to it and negative charges are repelled away from it. If they are brought into contact, they will both take a net negative charge.

What happens when a negatively charged rod is brought near a positively charged Electroscope?

What happens when a charged object is brought near an uncharged object?

Charging an object by touching it with another charged object is called charging by conduction. By bringing a charged object into contact with an uncharged object, some electrons will migrate to even out the charge on both objects. Charging by conduction gives the previously uncharged object a permanent charge.

What happens when a charged insulator is placed near an uncharged conductor?

What happens when a charged insulator is placed near an uncharged metallic object? They may attract or repel each other, depending on whether the charge on the insulator is positive or negative. They exert no electrostatic force on each other. The charged insulator always spontaneously discharges.

What is the electric field inside a hollow conducting sphere with charge q on its surface?

Gauss’ law tells us that the electric field inside the sphere is zero, and the electric field outside the sphere is the same as the field from a point charge with a net charge of Q. This result is true for a solid or hollow sphere. So we can say: The electric field is zero inside a conducting sphere.

Why is there no charge inside a hollow sphere?

To find field inside the hollow sphere we can take take Gaussian surfaces with radii ranging from R=0 to R=r. Any of these surfaces the charge enclosed is zero and hence field at all the points on these surfaces is zero. Thus, electric field in side a hollow sphere of conductor is zero.