Question

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

Answer 1

Answer:

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.

When placed in external electric field, the electrons migrate to one side of the conductor and an electric field is created inside the conductor itself due to separation of positive and negative charges, as is evident from the pic. In case of conductors, this electric field is equal to that of the external electric field and hence neutralises the external field.

So the net field inside the conductor is zero.

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Answer 2

Answer:

the are in +ve and -ve form

Explanation:

1. for example when the rainy season i.e cloud get -ve and earth surface acts as -ve so lightning strikes