Voltage is the measure of the electric potential difference between two points in an electrical circuit. It is often referred to as the force that pushes electric charge through a circuit.
Voltage is typically measured in units of volts (V) using a voltmeter. It can also be calculated by dividing the electric potential energy by the amount of charge.
Voltage and electric field are closely related. Electric field is a measure of the force that a charge experiences in an electric field. Voltage is the measure of the electric potential difference between two points, which is created by the electric field.
Voltage and current have a direct relationship. An increase in voltage will result in an increase in current, and a decrease in voltage will result in a decrease in current, as long as the resistance remains constant.
The voltage in a circuit can be affected by various factors such as the type of power source, the number and arrangement of components, and the length and width of the conductors. Changes in these factors can result in changes in the voltage of a circuit.