Electric potential, also known as voltage, is a measure of the electric potential energy per unit charge at a given point in an electric field. It is a scalar quantity, meaning it has magnitude but no direction.
Electric potential is typically measured in units of volts (V). This can be measured using a voltmeter, which measures the potential difference between two points in an electric field.
Electric field strength, also known as electric field intensity, is a measure of the force per unit charge experienced by a test charge placed in an electric field. It is a vector quantity, meaning it has both magnitude and direction.
Electric field strength is directly related to electric potential. The electric field strength at a point is equal to the negative gradient of the electric potential at that point. In other words, the direction of the electric field is in the direction of decreasing potential.
Electric potential energy is the potential energy that a charged particle possesses due to its position in an electric field. It is calculated by multiplying the charge of the particle by the electric potential at its position.