Question

Make a drawing of the electric field lines around a positive charge, then make a second drawing of the electric field lines around a negative charge. What is the mathematical equation for the electric force between two charges? Identify each variable. Describe the direction of the electric force between two opposite charges, between two like charges, and when a charge is in an electric field. A metal sphere is neutral because it has an equal number of protons and electrons. Draw how the charges in the sphere are redistributed when a negatively charged rod is brought near it.

Answer 1

The electric field lines around a positive charge point away from the charge, while the electric field lines around a negative charge point towards the charge. Coulomb's law states that the electric force between two charges is given by F=k(q1*q2)/r^2, where F is the electric force, k is the Coulomb's constant, q1 and q2 are the magnitudes of the charges, and r is the distance between the charges. The direction of the electric force depends on the charges, with opposite charges attracting each other and like charges repelling each other.

Step-by-step explanation:

The electric field lines around a positive charge point away from the charge, while the electric field lines around a negative charge point towards the charge.

The mathematical equation for the electric force between two charges is given by Coulomb's law: F=k(q1*q2)/r^2, where F is the electric force, k is the Coulomb's constant, q1 and q2 are the magnitudes of the charges, and r is the distance between the charges.

The direction of the electric force between two opposite charges is attractive, while between two like charges it is repulsive. When a charge is in an electric field, it experiences a force in the direction of the electric field lines.

When a negatively charged rod is brought near a neutral metal sphere, the electrons in the sphere are attracted to the rod, redistributing towards the side facing the rod.