Coulombs Law english

Front

What is Coulomb's Law?

Back

Coulomb's Law describes the force between two charged objects. It states that the electric force between two charges is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.

Front

What is the value of the constant in Coulomb's equation?

Back

k = 9 · 10^9 N m²/C².

Front

What is the relationship between electric charge and electric force?

Back

Electric force is the interaction between charged particles; like charges repel and opposite charges attract.

Front

What happens to the electric force if the distance between two charges is halved?

Back

The electric force quadruples.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

What occurs when a balloon is rubbed on hair?

Back

Electrons are transferred from the hair to the balloon, giving the balloon a negative charge.

Front

What is the principle of superposition in electrostatics?

Back

The principle of superposition states that the total electric force acting on a charge is the vector sum of the individual forces exerted by other charges.

Front

How does the electric force between two charges change if both charges are doubled?

Back

The electric force quadruples.

Front

What is the unit of electric charge?

Back

The unit of electric charge is the Coulomb (C).