A Problem in " Electric Potential "

• Ana Mido
In summary, the electric potential is zero 4 cm away from the charge of 4 µC on the line on which the two charges lie. However, there may be other points 4 cm away from the charge of 4 µC where the electric potential is not zero. Further clarification is needed to determine the exact location.
Ana Mido
Two charges 4 µc , -6 µc are placed on the x-axis 10 cm apart. where is the electric potential be zero ?

"4 cm apart from the charge of 4 µc"
Is that right ?!

Last edited by a moderator:
Looks right to me!

Ana Mido said:
Two charges 4 µc , -6 µc are placed on the x-axis 10 cm apart. where is the electric potential be zero ?

"4 cm apart from the charge of 4 µc"
Is that right ?!
Hello Ana Mido. Welcome to PF !

Certainly, the point at which the Electric Potential is zero is 4 cm away from the charge of 4 µC , but there may be other points 4 cm away from the charge of 4 µC where the Electric Potential is not zero.

Are you only considering the line on which the two charges lie? ... or some plane in which they lie? ... or three dimensional space?

There may also be some other point (or points) where the Electric Potential is zero .

SammyS said:
Hello Ana Mido. Welcome to PF !Certainly, the point at which the Electric Potential is zero is 4 cm away from the charge of 4 µC , but there may be other points 4 cm away from the charge of 4 µC where the Electric Potential is not zero.

Are you only considering the line on which the two charges lie? ... or some plane in which they lie? ... or three dimensional space?

There may also be some other point (or points) where the Electric Potential is zero .

I've considered the line on which the two charges lie. No plane . No three dimensional space.
But let's consider the line on which the two charges lie. Will the answer be right ? !

Ana Mido said:
I've considered the line on which the two charges lie. No plane . No three dimensional space.
But let's consider the line on which the two charges lie. Will the answer be right ? !
I'm rather sure that there should be one other location.

By The Way: You haven't actually removed all ambiguity regarding your answer of 4 cm away from the charge of 4 µC. There are two such locations on the line on which both charges lie.

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What is electric potential?

Electric potential is the amount of electric potential energy per unit charge at a specific point in an electric field. It is measured in volts.

What is the difference between electric potential and electric potential energy?

Electric potential refers to the amount of potential energy per unit charge at a specific point, while electric potential energy is the total amount of potential energy stored in a system of charges.

How is electric potential calculated?

Electric potential can be calculated using the equation V = kQ/r, where V is the electric potential, k is the Coulomb's constant, Q is the charge, and r is the distance from the charge.

What is the relationship between electric potential and electric field?

The electric field is the rate of change of electric potential. This means that the electric field is the gradient of the electric potential.

How does electric potential affect the movement of charges?

Electric potential affects the movement of charges by exerting a force on them. Positive charges will move towards areas of lower electric potential, while negative charges will move towards areas of higher electric potential.

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