Question

Due to an isolated negative charge. The potential is
(A) Positive
(B) Negative
(C) Both A and B
(D) None​

Answer 1

Due to an isolated negative charge the potential is A and positive B.

Answer 2

Answer :

★ Electric potential :

• Electric potential is a scalar quantity while potential gradient is a vector quantity.
• The electric potential near an isolated positive charge is positive because work has to be done by an external agent to push a positive charge in, from infinity.
• The electric potential near an isolated negative charge is negative because the positive test charge is attracted by the negative charge.
• The electric potential due to a charge q at its own location is not defined-it is infinite.
• For defining electric potential at any point, generally a point far away from the source charges is taken as the reference point. Such a point is assumed to be at infinity$.$

∴ (B) is the correct answer.

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