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U=−rGMm. This is a negative value for two reasons; the force acting between them is attractive, and the zero of potential energy is at infinite separation. This is a negative result if the force between the two charges is attractive (they are opposite) and positive if it is repulsive (the charges are similar).

## Is negative force attractive?

Like charges repel and unlike charges attract. Coulomb’s law describes a force of infinite range which obeys the inverse square law, and is of the same form as the gravity force. … A negative force implies an attractive force. The force is directed along the line joining the two charges.

## What is the significance of negative potential?

The potential at any point is always an indicator of how much more potential energy a coulomb would have compared to when it’s at some reference point. So, if the potential is negative, it means the coulomb at that point would have less potential energy compared to when it’s at the reference point.

## Is a negative force attractive or repulsive?

When the charges have opposite sign, the force is attractive (negative F), while if both charges have the same sign, the force is repulsive (positive F).

## What is negative potential energy?

A negative potential energy means that work must be done against the electric field in moving the charges apart!

## Can a positive force be attractive?

If the particles are both positively or negatively charged, the force is repulsive; if they are of opposite charge, it is attractive.

## What is physical negative potential?

# A negative potential energy means that work must be done against the electric field in moving the charges apart! # Assuming potential at infinity to be zero if electrostatic potential energy of the system is negative then net positive work by an external agent was required to assemble the system of charges.

## Is potential difference negative?

As you step across the circuit elements in the same direction as the current in the element, the potential difference can be positive or negative. … As there is no energy accumulation in the circuit, the increases in potential difference must be equal to the decreases in potential difference.

## What does a negative force mean?

A negative force is the force acting on an object against the applied force. The applied force here is positive that is aimed in the right direction whereas a negative force acts in the left direction. An example of negative force is deceleration, where the speed of a moving object decreases due to gravitational force.

## Is attraction positive or negative?

According to Coulomb, the electric force for charges at rest has the following properties: Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges.

## Which force is repulsive or attractive?

If both the interacting particles are positively or negatively charged, then the force is repulsive. If both the interacting particles are of opposite charges then the force is attractive in nature.