B is the only one where the two fields reinforce, so it is a good candidate. It could only lose to A or C if those were significantly closer to one of the charges.Cici2017 said:
Electric field strength is a measurement of the intensity of an electric field at a particular point. It is also known as electric field intensity or electric field magnitude.
Electric field strength is calculated by dividing the force exerted on a test charge by the magnitude of the charge. The formula for electric field strength is E = F/q, where E is electric field strength, F is force, and q is charge.
The unit of measurement for electric field strength is newtons per coulomb (N/C). This represents the force exerted on a charge of one coulomb in an electric field.
Electric field strength and electric potential are related but different concepts. Electric field strength measures the strength of the electric field at a point, while electric potential measures the potential energy per unit charge at a point. In other words, electric field strength is a measure of the force exerted on a charge, while electric potential is a measure of the work required to move a charge from one point to another.
The factors that affect electric field strength include the magnitude of the charge creating the field, the distance from the charge, and the medium in which the electric field exists. In general, electric field strength is stronger when the charge is larger and closer, and weaker when the electric field passes through a medium rather than through a vacuum.