Is electromagnetic force affected by intervening medium?
EM force does not need any intervening medium.
Why is gravitational force independent of medium?
Gravity is unipolar, attractive. So when it goes through a medium, there is no polarizing effect or polarizing forces. Thus the gravitational constant is independent of the intervening medium.
Does electrostatic force depend on medium?
Gravitational force is always that of attraction while the electrostatic force may be attractive or repulsive depending upon the nature of interacting charges. Gravitational force is unaffected by the intervening medium. The electrostatic force depends on the dielectric constant of the intervening medium.
Does Coulomb force depend on medium?
The Coulomb Force between two charges decreases when a dielectric medium is placed in between the charges. The dielectric reduces the electrostatic force as compared to vacuum by a factor εr called the dielectric constant of the medium. This factor is also know as the relative primitivity of the medium.
What is effect of medium on electrostatic force?
Ans: In a given medium, the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitude of charges and inversely proportional to the square of the distance between them. The force acts along the line joining the two charges.
What is effect of medium?
Because a “medium” is fundamentally made up of atoms, and atoms contain bound electrons. Thus no electric interaction in a medium can occur without those bounds charges reacting and contributing to the effects of the electric force. The force between the charges will decrease as permittivity increases.
Which force depends on medium?
It is because a medium can be polarised by an external E-field. The dipoles so set up produce the external E-field produce an E-field in the opposite direction so the net E-field (the sum of the external and dipole produced E-fields) is smaller. Thus the force a given charge is smaller.
What are basic properties of charge?
The charge is a scalar quantity as it has only magnitude and no direction. The charge is just as other fundamental properties of the system like mass. The only difference between mass and charge is that charge is both positive and negative, while mass is always positive.
Can positive charge attract positive charge?
The protons are positively charged, the electrons are negatively charged, and the neutrons are neutral. Therefore, all things are made up of charges. Opposite charges attract each other (negative to positive). Like charges repel each other (positive to positive or negative to negative).