Why does charge flow from inner sphere to outer sphere?

When the inner sphere is positively charged, no matter if it’s bigger or smaller than the charge that resides on the surface of the outer sphere, as long as it’s positive, the potential on the inner sphere will be greater than that of the outer sphere. As you know, charges flow from higher potential to lower potential.

What is the potential of the inner sphere?

Hence, the potential of the inner sphere is 4.5 x 102 V. Capacitance of the sphere is given by the relation, The capacitance of the isolated sphere is less in comparison to the concentric spheres.

What is a concentric sphere?

(kŏn-sen’trik) Having a common center; said of two or more circles or spheres having a common center.

How do you find concentric spheres?

Two circles or more than that are said to be concentric if they have the same centre but different radii. Let, x2 + y2 + 2gx + 2fy + c = 0 be a given circle having centre at (- g, – f) and radius = √g2+f2−c. Similarly, the equation of a circle with centre at (h, k) and radius equal to r, is (x – h)2 + (y – k)2 = r2.

Why is charge always on the outer surface of the conductor?

The electric field inside the conductor is zero. In case of conductors, this electric field is always equal to that of the external electric field and hence the external field is neutralized. Hence all the charges move as far away as possible, i.e. on the surface of the conductor.

Why do charges reside on the outer surface of the conductor?

In all conductors, charges reside on the surface. The reason for this is that conductors have free electrons, that is, the electrons are loosely attached to the nucleus of the atoms in the conductors.

What happens when inner sphere is earthed?

Spherical capacitor when inner sphere is earthed The charge + Q1 on the inner surface of outer sphere B will induce a charge of -Q1 coulombs on the outer surface of inner sphere A and + Q1 coulombs on the inner surface of sphere A, which will go to earth. Now there are two capacitors connected in parallel.

How many concentric spheres are there?

Four spheres
Four spheres were assigned to Mercury, Mars, Venus, Jupiter, and Saturn which were the only known planets at that time. The first and second spheres of the planets moved exactly like the first two spheres of the sun and the moon.

What is a concentric square?

The term concentric, while usually used for circles, is actually just based on the Latin for “same centre”. Hence concentric squares are just those that have the same center (where the diaganols meet).

What is the relationship between two concentric circles?

If two or more circles are concentric in the same plane, they must have different radii. Concentric circles will never intersect, and the distance between any two concentric circles is the same all the way around. The area of the region between two concentric circles in the same plane is called the annulus.

What is the area between 2 concentric circles?

The area between two concentric circles is known as the circular ring. It is also known as the annulus.

What is the charge inside a sphere of charge?

Inside a Sphere of Charge. The electric field inside a sphere of uniform charge is radially outward (by symmetry), but a spherical Gaussian surface would enclose less than the total charge Q. The charge inside a radius r is given by the ratio of the volumes:

What is the electric field at the center of a sphere?

The electric field is seen to be identical to that of a point charge Q at the center of the sphere. Since all the charge will reside on the conducting surface, a Gaussian surface at r< R will enclose no charge, and by its symmetry can be seen to be zero at all points inside the spherical conductor.

What happens when two concentric spheres are placed at the center?

Concentric Spheres What happens with two concentric spheres, or with a point charge at the center of a spherical shell? The net field outside any of the objects is simply the vector sum of the fields from the different objects. The field inside any conductors is zero – charge on the conductor shifts to ensure this.

What is the electric field inside a spherical shell of charge?

The spherically symmetric charge outside the radius r does not affect the electric field at r. It follows that inside a spherical shell of charge, you would have zero electric field. Field outside charged sphere Index