Exploring Electrostatic Fields

What does Coulomb's Law describe?

• The gravitational force between two masses.

• The electrostatic force between two charged objects.

• The magnetic force between two magnets.

• The chemical reaction between two substances.

State the formula for Coulomb's Law.

• F = k * |q1 * q2| * r^2

• F = k * (q1 + q2) / r

• F = k * |q1 * q2| / r^2

• F = k * (q1 - q2) / r

How does the distance between two charges affect the force according to Coulomb's Law?

• The force decreases as the distance between two charges increases.

• The force remains constant regardless of the distance between two charges.

• The force is only affected by the mass of the charges, not the distance.

• The force increases as the distance between two charges increases.

Define electric field strength and its unit.

• Electric field strength is measured in volts per meter (V/m).

• Electric field strength is expressed in amperes per meter (A/m).

• Electric field strength is defined as the force per unit charge in coulombs (C).

• Electric field strength is measured in newtons per meter (N/m).

What is the formula for electric field strength?

• E = P/V

• E = m*a

• E = F/q

• E = I*R

How does electric field strength vary with distance from a point charge?

• Electric field strength increases linearly with distance from a point charge.

• Electric field strength decreases with the square of the distance from a point charge.

• Electric field strength remains constant regardless of distance from a point charge.

• Electric field strength decreases with the cube of the distance from a point charge.

What is electric potential energy?

• The energy released during a chemical reaction.

• The energy required to move a charged particle through a vacuum.

• The energy produced by electric currents in a circuit.

• Electric potential energy is the energy stored in an electric field due to the position of charged particles.

Provide the formula for electric potential energy between two point charges.

• U = k * (q1 * q2) / r

• U = (q1 + q2) * r

• U = k * (q1 - q2) / r^2

• U = k * (q1 * q2) * r

How does the configuration of charges affect electric potential energy?

• The configuration of charges has no effect on electric potential energy.

• Electric potential energy is only affected by the distance between charges, not their configuration.

• The configuration of charges affects electric potential energy by determining whether the energy is increased or decreased based on the nature of the interactions (attractive or repulsive) between the charges.

• The configuration of charges only affects magnetic potential energy, not electric potential energy.

Explain the concept of electric field lines.

• Electric field lines only exist around negative charges.

• Electric field lines indicate the speed of electric charges in a circuit.

• Electric field lines are imaginary lines that represent the direction and strength of an electric field, originating from positive charges and terminating at negative charges.

• Electric field lines are physical entities that can be seen and touched.