The net electric force is the sum of all the individual electric forces acting on an object due to multiple charges.
To find the negative charge position, you need to use Coulomb's law, which states that the electric force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. By setting the net electric force to zero and solving for the distance, you can find the position of the negative charge.
Coulomb's law is a fundamental law of electrostatics that describes the relationship between the electric force, the charges of two objects, and the distance between them. 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.
The unit of electric force is Newton (N), which is the unit of force in the International System of Units (SI).
The key steps for solving a net electric force homework are: 1) Identify the charges and their positions, 2) Determine the direction of the electric force for each charge, 3) Use Coulomb's law to calculate the magnitude of each electric force, 4) Find the net force by adding all the individual forces, 5) Set the net force to zero and solve for the unknown variable (e.g. distance or charge), and 6) Check your answer and make sure it makes sense in the context of the problem.