Electrostatics

Front

What is the formula for calculating the electric force between two point charges?

Back

F = k * |q1 * q2| / r^2, where F is the force, k is Coulomb's constant, q1 and q2 are the charges, and r is the distance between them.

Front

What is Coulomb's Law?

Back

Coulomb's Law describes the electrostatic interaction between electrically charged particles. It states that the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

Front

What is an electric field?

Back

An electric field is a region around a charged object where other charged objects experience a force. It is represented by field lines that indicate the direction and strength of the field.

Front

What does it mean for an object to be positively charged?

Back

An object is positively charged when it has more protons than electrons.

Front

What does it mean for an object to be negatively charged?

Back

An object is negatively charged when it has more electrons than protons.

Front

How do electric field lines behave around like charges?

Back

Electric field lines repel each other and do not cross when around like charges.

Front

How do electric field lines behave around opposite charges?

Back

Electric field lines attract each other and connect from the positive charge to the negative charge.

Front

What is the relationship between electric field strength and distance from a charge?

Back

Electric field strength decreases as the distance from the charge increases.

Front

What happens to the electric field when the distance between two charges is doubled?

Back

The electric field strength is reduced to one-fourth of its original value.

Front

What is the principle of superposition in electrostatics?

Back

The principle of superposition states that the total electric field created by multiple charges is the vector sum of the electric fields created by each charge individually.