What is the rule for when a force is attractive or repulsive?

If the product q1q2 is positive, the force between the two charges is repulsive; if the product is negative, the force between them is attractive.

How do you determine if a force is attractive or 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.

What is the force of attraction and repulsion?

Attraction is a force between two or more dissimilar or unlike charges. Two charges of dissimilar characteristics pull towards each other. Repulsion is a force between two or more similar or like charges. Two charges of similar characteristics pull away from each other.

What are the 3 laws of electrostatics?

Answer: The three laws of electric charges are that like charges repel, unlike charges attract and that charged objects can be attracted to neutral objects. This means that two objects with the same charge push away from each other, while two objects with opposite charges pull towards each other.

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What is Coulomb’s law explain?

Definition of Coulomb’s law

: a statement in physics: the force of attraction or repulsion acting along a straight line between two electric charges is directly proportional to the product of the charges and inversely to the square of the distance between them.

Is negative force repulsive or attractive?

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).

Is repulsive or attractive?

Repulsion is a movement between two charges that are identical or similar. The power that exists between two electrons (negative charge). Attraction is a force between two charges that are distinct or unlike.

What is an repulsive force?

Definitions of repulsive force. the force by which bodies repel one another. synonyms: repulsion. Antonyms: attraction, attractive force. the force by which one object attracts another.

What is a repulsive force in chemistry?

Repulsive forces Repulsive forces exist only when atoms are very close to each other. (3/14) “They [the atoms] will approach until both nuclei will simply shove each other because both of them are positive.” The balance between the attraction and repulsion forces determines how close the atoms can get.

What does the law of repulsion and attraction State?

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. The size of the force varies inversely as the square of the distance between the two charges.

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What kind of force is an electrostatic force?

Electrostatic forces are non-contact forces; they pull or push on objects without touching them. Rubbing some materials together can result in something called ‘charge’ being moved from one surface to the other. Charged objects pull on other uncharged objects and may either push or pull on other charged objects.

What is meant by electrostatic attraction?

Electrostatic Attraction and Repulsion. The attraction and repulsion of electrostatically charged bodies for each other, shown when charged with electricity. If charged with electricity of the same sign they repel each other. If with opposite they attract each other.

What is electrostatics Class 12?

Electrostatics is a branch of physics that deals with the study of electromagnetic phenomena where electric charges are at rest, i.e., where no moving charges exist after a static equilibrium has been established. … Electric charge is symbolized as Q and measured using coulomb.

What are the differences between Coulomb force and gravitational force?

1) The gravitational force between two masses is always attractive but Coulomb force between two charges can be attractive or repulsive, depending on the nature of charges. 2) The value of the gravitational constant G=6.626×10-11Nm2kg-2.