# What is Coulomb's law ?

What is Coulomb's law ?

COULOMB’S LAW FORMULA Coulomb’s law is based on the electrostatic interaction between electrically charged particles. The law was first published by French physicist Charles Augustin de Coulomb and was essential in the development of the theory of electromagnetism. The law provides the amount of force when two charges are separated by some distance. The interaction among charged objects is a non-contact force that acts at some distance of separation. Every electrical interaction involves a force that highlights the importance of charged variables. Coulomb’s law on magnitude states that, The electrostatic force between the two charged points is directly proportional to the product of these charges and inversely proportional to the square of the distance between them.

Coulomb’s Law is the force of repulsion/ attraction between two like/unlike charges of electricity concentrated at two points in an isotropic medium is proportional to the product of their magnitudes and inversely proportional to the square of the distance between them and to the dielectric constant of the medium.

## Related questions

Description : What is the Lenz's law?

Answer : The direction of induced current is such as to oppose the change of current in circuit.

Description : What is KCL and KVL law?

Answer : Basically KCL and KVL are two laws that are presented by Kirchoff KCL stands for kirchoff, s current law And KVL stands for kirchoff, s voltage law According to KVL:sum of all the voltages in a ... is zero For example v1 +v2+ v3+ v4 =0 According to KCL: Incoming current=outgoing current

Description : State the first law of illumination

Answer : This law states that the illuminance (E) at any point on a plane perpendicular to the line joining the point and source is inversely proportional to the square of the distance between the source and plane. ... in a given direction.   d - Distance between the source and plane   E - Illuminance

Description : Define Faraday’s first law of electromagnetic induction.

Answer : Faraday’s First Law: Whenever a changing magnetic flux links with a conductor, an emf is induced in that conductor.  OR  When a conductor cuts across magnetic field, an emf is induced in that conductor.

Description : Ohm's law example

Description : State law of Parallelogram of force.

Answer : Law of Parallelogram of force: It states that if two forces acting at and away from point be represented in magnitude direction by the two adjacent sides of parallelogram, then the ... passing through the point of intersection of the two forces represents the resultant in magnitude direction .

Description : Ohm's law formula

Description : Kirchhoff's Voltage Law

Description : Kirchhoff's Current Law

Description : Faraday's law of induced voltage

Description : State and explain Lenz's law.

Answer : Lenz’s law: It states that the direction of statically induced emf is such that it always opposes the cause that produces it. In fact, the induced emf produces current, which produces magnetic flux and this magnetic flux opposes the changing magnetic field that is responsible for emf induction.

Description : State and explain Ohm's law for magnetic circuit.

Answer : Ohm's law for electric circuit is V = I R where V is voltage, I is current, R is Resistance. Ohm's law for magnetic circuit is MMF = Φ X S where MMF is magnetomotive force (NI) ... . Resistance is the opposition to the flow of current while reluctance is the opposition to the flow of magnetic flux.

Description : State Faraday's law of electromagnetic induction.

Answer : First Law: - Whenever change in the magnetic flux linked with a coil or conductor, an EMF is induced in it. OR Whenever a conductor cuts magnetic flux, an EMF is induced in conductor.  Second Law: ... of induced EMF is directly proportional to (equal to) the rate of change of flux linkages.

Answer : Kelvin Planck's law deals with conservation of heat into work.

Description : Kirchhoff's voltage law applies to circuits with?

Answer : Kirchhoff's voltage law applies to circuits with linear, non-linear, active, passive, time varying as wells as time-in-variant elements.

Description : Kirchhoff s law is not applicable to circuits with?

Answer : Kirchhoff's law is not applicable to circuits with distributed parameters.

Description : Kirchhoff s law is applicable to?

Answer : Kirchhoff s law is applicable to both a.c. as well d.c. circuits.

Description : Kirchhoffs voltage law is related to?

Description : Kirchhoffs current law is applicable to only?

Answer : Kirchhoffs current law is applicable to only junction in a network.

Description : According to Kirchhoffs voltage law, the algebraic sum of all IR drops and e.m.f. in any closed loop of a network is always?

Answer : According to Kirchhoffs voltage law, the algebraic sum of all IR drops and e.m.f. in any closed loop of a network is always zero.

Description : Kirchhoff's current law states that?

Answer : Kirchhoff's current law states that Hebraic sum of the currents meeting at the junction is zero.

Description : The condition for the validity under Ohm's law is that?

Answer : The condition for the validity under Ohm's law is that resistance must be uniform.

Description : According to law of triangle of forces?

Answer : According to law of triangle of forces if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium.

Description : I found that by the same process of applying KCL and KVL, the problems of mesh analysis can also be solved. My teacher used KCL and KVL too. So, what's the difference between mesh analysis and Kirchoff's laws?

Description : What law describes the force between two stationary electrically charged objects? w) Ampere's law x) Coulomb's law y) Kirchoff's Rules (pron: kir-koff rules) z) Ohm's law

Description : Gauss' law of electricity, Gauss' law of magnetism, Faraday's law of induction, and Amperes' law form the basic equations of electromagnetism. This combination is collectively known as: w) Coulomb's equations x) Volta's equations y) Fermi's equations z) Maxwell's equations

Description : The law that relates the electric field at the surface of a region to the amount of charge inside the region is called: w) Coulomb's Law x) Faraday's Law y) Gauss' Law z) Biot-Savart Law

Description : The force acting between two point charges can be computed using which of the following laws? w) Ohm's Law x) Ampere's Law y) Coulomb's Law z) Newton's Second Law.

Description : A current of 6 amperes flows through a 2 ohm resistor for 30 seconds. How many coulombs of charge have passed through the resistor?

Description : Ten Coulombs of charge flowing through a wire per second is equal to: w) 100 Amperes x) 10 Ampere y) 1 Amperes z) 0.1 Amperes

Description : Ten coulombs of charge are placed on a solid copper sphere. Once the charge has come to rest, the ELECTRIC POTENTIAL inside the sphere is found to be: w) zero x) uniform inside the sphere and ... the sphere y) smaller than the electric potential outside the sphere z) varying as one over r squared

Answer : ANSWER: X -- UNIFORM INSIDE THE SPHERE AND EQUAL TO THE ELECTRIC POTENTIAL ON THE SURFACE OF THE SPHERE

Description : Ten coulombs of positive charge are placed on an irregularly-shaped, solid piece of copper. Once the charge has stopped moving, the electric field inside the copper is: w) zero x) changes as one ... squared y) becomes smaller as you approach the center z) becomes larger as you approach the center

Description : A 10 volt battery connected to a capacitor delivers a charge of 0.5 coulombs. The capacitance of the capacitor is: w) 2 x 10-2 farads x) 5 x 10-2 farads y) 2 farads z) 5 farads

Description : Five coulombs of charge are placed on a thin-walled conducting shell. Once the charge has come to rest, the electric potential inside the hollow conducting shell is found to be: w) zero x) uniform ... sphere y) smaller than the electric potential outside the sphere z) varying as one over r squared.

Answer : ANSWER: X -- UNIFORM INSIDE THE SPHERE AND EQUAL TO THE ELECTRIC OTENT

Description : If 10 joules of energy are required to move 5 coulombs of charge between two points, the potential difference between the two points is equal to how many volts?

Description : Electric current may be expressed in which one of the following units? w) coulombs/volt x) joules/coulomb y) coulombs/second z) ohms/second

Description : Suppose that 1000 electrons are removed from a neutral dielectric. How much charge, in coulombs, is stored in the dielectric?

Answer : If we have 15 coulombs of charge then 3A can be flown for 5 sec.

Description : What new law is needed to make the world a better place to live?

Description : What is Digital Forensic? A. Process of using scientific knowledge in analysis and presentation of evidence in court B. The application of computer science and investigative procedures for a legal ... technology in the investigation and establishment of the facts or evidence in a court of law

Answer : B. The application of computer science and investigative procedures for a legal purpose involving the analysis of digital evidence after proper search authority, chain of custody, validation with mathematics, use of validated tools, repeatability, reporting, and possible expert presentation

Description : According to Indian law, what is the minimum age of marriage? a) 16 years for women and 19 years for men b) 18 for women and 21 for men c) 21 for women and men both d) 18 for men and women both

Answer : b) 18 for women and 21 for men

Description : According to Indian law, what is the minimum age of a person for employment in a factory? a) 18 years b) 21 years c) 14 years d) 16 years

Description : What is the supreme law of the land? Choose one: a. The Articles of Confederation. b. The Constitution. c. The Emancipation Proclamation. d. The Declaration of Independence.

Description : What does the judicial branch do? Choose one: a. Decides if a law goes against the Constitution. b. Reviews laws. c. Resolves disputes. d. All of the above.

Description : What is the “rule of law”? Choose one: a. Everyone but the President must follow the law. b. Government does not have to follow the law. c. All laws must be the same in every state. d. Everyone must follow the law.

Description : An ice skater is spinning like a top on a frozen lake. She raises her arms from their initial horizontal position to a vertical position over her head. The skater will experience an increase in angular velocity due to what physical law?

Description : A spring with a force constant of 20 newtons per meter is known to obey Hooke's Law. The spring is attached to a mass of 5 kilograms and placed on a horizontal, frictionless surface. The ... and released. What is the kinetic energy of the mass as it passes through its equilibrium position?

Description : What law asserts that it makes no difference in what grouping we add vectors?