What is electrostatic?state coulomb 's law?
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From mechanics we know that, between two bodies, which are not in contact with each other, there is a small gravitational attraction force.
Between two objects with electrical charge, depending on the sign of the charges, positive or negative, the interaction force can be of attraction or repulsion.
Let’s consider two electrical charges q1 and q2, separated by the distance r. Between the electrical charges there is an interaction force which is attractive if the charges have opposite signs and repulsive if both charges have the same sign (either positive or negative).
The Coulomb force (F), also called electrostatic force or Coulomb interaction, states that the magnitude of the electrostatic force of interaction between two point electrical charges (q1, q2) is directly proportional to the scalar multiplication of the magnitudes of electrical charge and inversely proportional to the square of the distance (r) between them.
The Coulomb force is along the straight line joining them. If the two electrical charges have the same sign, the electrostatic force between them is repulsive; if they have different signs, the force between them is attractive.
The mathematical expression of Coulomb’s law is:
F=kq1q2r2(1)
where:
F [N] – Coulomb force
q1, q2 [C] – electrical charges
r [m] – distance between electrical charges
k [F/m] – is called the Coulomb’s constant, or electric force constant or electrostatic constant.
The value of Coulomb’s constant is calculated as:
k=14πε0(2)
where ε0 is the electrical permittivity of free space (vacuum).
The electrical permittivity is a constant, of value:
ε0=8.854187817⋅10−12Fm
The unit of measurement for electrical permittivity is Farad per meter.
Between two objects with electrical charge, depending on the sign of the charges, positive or negative, the interaction force can be of attraction or repulsion.
Let’s consider two electrical charges q1 and q2, separated by the distance r. Between the electrical charges there is an interaction force which is attractive if the charges have opposite signs and repulsive if both charges have the same sign (either positive or negative).
The Coulomb force (F), also called electrostatic force or Coulomb interaction, states that the magnitude of the electrostatic force of interaction between two point electrical charges (q1, q2) is directly proportional to the scalar multiplication of the magnitudes of electrical charge and inversely proportional to the square of the distance (r) between them.
The Coulomb force is along the straight line joining them. If the two electrical charges have the same sign, the electrostatic force between them is repulsive; if they have different signs, the force between them is attractive.
The mathematical expression of Coulomb’s law is:
F=kq1q2r2(1)
where:
F [N] – Coulomb force
q1, q2 [C] – electrical charges
r [m] – distance between electrical charges
k [F/m] – is called the Coulomb’s constant, or electric force constant or electrostatic constant.
The value of Coulomb’s constant is calculated as:
k=14πε0(2)
where ε0 is the electrical permittivity of free space (vacuum).
The electrical permittivity is a constant, of value:
ε0=8.854187817⋅10−12Fm
The unit of measurement for electrical permittivity is Farad per meter.
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HEYA , HERE IS YOUR ANSWER --
ELECTROSTATIC => Electrostatic is a branch of physic that deals with study of electric charge at rest .
---------------------------
COULOMB'S LAW => The magnitude of the electrostaticforce of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.
★ hope u like it ★
ELECTROSTATIC => Electrostatic is a branch of physic that deals with study of electric charge at rest .
---------------------------
COULOMB'S LAW => The magnitude of the electrostaticforce of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.
★ hope u like it ★
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