Frequent question: Can a positive force be attractive?

Regarding force (c)A positive force can be both attractive and repulsive in nature. Explanation: The force is repulsive if the particles are both positively or negatively charged; it is attractive if they are of opposite charge.

Which forces can be attractive?

Electric and magnetic (electromagnetic) forces can be attractive or repulsive, and their sizes depend on the magnitudes of the charges, currents, or magnetic strengths involved and on the distances between the interacting objects. Gravitational forces are always attractive.

Why positive force is repulsive?

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.

Is attraction negative or positive?

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.

Does a negative force implies attractive nature?

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.

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What is an attraction force?

Definitions of attractive force. the force by which one object attracts another. synonyms: attraction.

How do you find the attractive force?

Ions exhibit attractive forces for ions of opposite charge — hence the adage that “opposites attract.” The force of attraction between oppositely charged ions follows Coulomb’s law: F = k * q1 * q2 / d2, where F represents the force of attraction in Newtons, q1 and q2 represents the charges of the two ions in coulombs …

Can a positive force can be both attractive and repulsive?

Regarding force (c)A positive force can be both attractive and repulsive in nature. Explanation: The force is repulsive if the particles are both positively or negatively charged; it is attractive if they are of opposite charge.

Is negative potential attractive?

Remember the rule: Opposites attract; Likes repel. A positive charge would be repelled by something that already has a positive potential, while a negative charge would be attracted to the very same object.

Why is negative potential attractive?

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).

Can a positive force be attractive or repulsive?

If the particles are both positively or negatively charged, the force is repulsive; if they are of opposite charge, it is attractive. This called Coulomb’s law and was the first attempt to understand the electric force. Like the gravitational force, the Coulomb force is an inverse square law.

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What is the nature of positive force?

1. Positive Work : If a force displaces the object in its direction, then the work done is positive. The example of this kind of work done is motion of ball falling towards ground where displacement of ball is in the direction of force of gravity.

What is an attractive potential?

If the potential energy decreases as it approaches the object then it is an attractive potential. If it increases then it is a repulsive potential.

Can electric force be attractive and repulsive?

Comparing Electrical and Gravitational Forces

Both equations show an inverse square relationship between force and separation distance. … Second, gravitational forces are only attractive; electrical forces can be either attractive or repulsive.