Can a positive force be both attractive and repulsive?
Answer: c) A positive force can be both attractive and repulsive in nature.
Can electromagnetic force be attractive as well as repulsive?
Electromagnetic force is a special force that affects everything in the universe because it has an infinite-range attractive, like gravity; it is also a repulsive force which acts between charged particles. … If we have a positive and a negative electric charge, it will result in attraction.
Why is positive force 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 gravitational force repulsive?
Now, we know that the mass of the objects that is taken into consideration cannot be negative in nature. Hence, the nature of the gravitational force will always be attractive and not repulsive. Thus, we can conclude that gravitational force cannot be repulsive. Hence, the correct answer is Option B.
Why electromagnetic force is attractive and repulsive?
Electromagnetic force is the force present between electrically charged particles such as electrons and protons. It has the ability to repel and attract charges. The electromagnetic force is attractive for unlike charges( electron and proton) and repulsive for like charges(two electrons or protons).
Is attractive force positive or negative?
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).
Why are attractive forces taken as negative?
That’s all right,but I want to know whenever we use a work done by an attraction force we use a negative sign,viz: the gravitational potential.It is written in books that the gravitational potential is negative because the work to bring an object from infinity to the gravitational field is done by the gravitational …
Why do attractive forces have negative potential energy?
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).