In words, Coulomb’s law is: The magnitude of the electric force between to point charges is proportional to the magnitude of the charges, and inversely proportional to the distance between them.
Is Coulomb force the same as electric force?
Coulomb force, also called electrostatic force or Coulomb interaction, attraction or repulsion of particles or objects because of their electric charge. … Two like electric charges, both positive or both negative, repel each other along a straight line between their centres.
What is the relationship between electric force and charge?
Explanation: Electrostatic force is directly related to the charge of each object. So if the charge of one object is doubled, then the force will become two times greater. Two times 0.080 N is 0.160 N.
What is the difference between dielectric constant and Coulomb’s constant?
Another important difference is that the gravitational force cannot be weakened by any intervening medium, while Coulomb’s law contains a factor (the static relative permittivity εr, also known as dielectric constant) depending on the material that fills the space between the charges.
How was Coulomb’s constant determined?
Coulomb’s constant was discovered and named after Charles-Augustin de Coulomb. He determined the strength of the electric force by measuring the force between charged objects using a torsion balance.
What is Coulomb’s law constant?
This equation is known as Coulomb’s law, and it describes the electrostatic force between charged objects. The constant of proportionality k is called Coulomb’s constant. In SI units, the constant k has the value. k = 8.99 × 10 9 N ⋅ m 2 /C 2.
Electric force is directly related to each charge. It is repulsive between like charges and attractive between opposite charges. … Electric force is inversely related to the square of the distance between charges. If the distance is tripled, the force will be one-ninth as great.
How is the electric force between two charges affected when the distance between the charges is halved?
The force between the two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Hence, if distance between charges is halved (charges remaining kept constant), the force between the two charges is quadrupled.
What is the relation between dielectric constant and temperature?
The effect of temperature on the dielectric constant is similar to that of frequency. With increased temperature, the mobility of polar molecules increases, which increases the dielectric constant.
Is dielectric constant same as electrostatic force constant?
If the space between the charges is filled with a non conducting medium or an insulator called “dielectric”, it is found that the dielectric reduces the electrostatic force as compared to free space by a factor (er) called DIELECTRIC CONSTANT. It is denoted by er . This factor is also known as RELATIVE PERMITTIVITY.
What determines dielectric constant?
The dielectric constant of a material depends upon the polarizability of the molecules. … In the case of polar molecules, a third factor is also involved, namely orientation polarization (in which the application of an electric field causes an orientation of dipoles).