A charged solid spherical conductor with a charged solid spherical shell

SphericalConductorsA solid spherical conductor has charge + Q and radius R. It is surrounded by a solid spherical shell with charge − Q, inner radius 2R, and outer radius 3R. The objects are isolated in space and the electric potential is zero as the distance from the spheres approaches infinity. Point A is at the center of the inner sphere, Point B is located at R, Point C is located at 2R and point D is located at 3R. All distances are from the center of the inner sphere.
Where is the electric potential maximum?
Where is the electric field maximum?

Continue reading

Advertisements

How will the spheres be charged, if at all?

Rod2Spheresv3Two uncharged conducting spheres, A and B, are suspended from insulating threads so that they touch each other. While a positively charged rod is near A (not touching sphere A), the spheres are moved apart. How will the spheres be charged, if at all?

 
 
Continue reading

Two spheres with electric charges

MARBLES2Two geometrically identical spheres with electric charges Q and 3Q are separated by a distance of r in a vacuum. The electrostatic force between them is 48 µN. The two spheres are brought into contact and then separated to the former distance. Determine the magnitude of the force that each sphere now experiences.

Continue reading

How much heat is released ?

elBallA spherical conductor has a capacitance of 8 µF and it is charged to a potential of 2000V. The conductor is connected with a long thin wire to an another uncharged spherical conductor of capacity of 32 µF.
Determine how much heat is released.

Continue reading