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Electric potential is a scalar quantity....

Electric potential is a scalar quantity. Due to a point charge charge q at distance r, the potential is given by `V=(q)/(4pi in_(0)r)`. A point charge q is placed at `(3a, 0)` and another charge `-2q` is placed at `(-3a, 0)`.
If we plot a graph of potential (V) on x-axis it will be like:

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
D
At `x=-3a` & `x=3a`, the potential becomes `-oo` & `+oo` respectively and from the above question potential becomes zero at (a, 0) and (9a, 0)
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