All High School Physics Resources
Example Question #1 : Understanding Electric Fields
Calculate the magnitude of the electric field at a point that is located directly north of a point charge, .
The magnitude of an electric field due to a single point charge is given by the formula:
The variable refers to Coulomb's constant. We are given the charge and the distance between points. To use the equation, first convert the distance to meters.
We can now use the given constant, charge, and distance in the equation to solve for the magnetic field strength.