Having some difficultly answering these questions. Can someone help? This is reg

Question

Having some difficultly answering these questions. Can someone help?

This is regards to Electric Dipole with Conduction and Nonconducting Circles.

1) What are the potential and the electric field inside the conductor?

2) Why are the equipotential lines near the conductor surface parallel to the surface?

3) What are the potential and the electric field inside the insulator?

4) Why are the equipotential lines near the insulator surface perpendicular to the surface?

5) Why do the field lines "intensify" around the conductor?

Explanation / Answer

a) Electric field inside a conductor= 0, potential is constant equal to the value on surface.

b) because electric field line are always perpendicular to the surface of conductor, and equipotential surface is always perpendicular to the electric feild lines, hence parallel to the surface.

c) electric inside an insulator exits and can be found out using gauss law, potential is also not constant as electric field exists.

d) no it is not necessary, it will depend on nature of electric field.

e) becuase the originates from the surface and there magnitude keeps on decreasing as we go away from the surface.

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