In Ohm's Law, what does 'Current' represent?

In Ohm's Law, 'Current' refers to the flow of electric charge through a conductor or circuit. It is measured in amperes (A) and represents the movement of electrons as they pass through a conductive material. When a potential difference (voltage) is applied across a conductor, it causes the charge carriers (often electrons) to flow, creating an electric current.

Understanding this concept is essential for grasping how electrical circuits function. The amount of current flowing in a circuit is directly proportional to the voltage across it, as described by Ohm's Law: ( V = I \times R ), where V is the voltage, I is the current, and R is the resistance. This relationship helps predict how changes in voltage or resistance will affect the current in a circuit, which is fundamental for designing and analyzing electrical systems.

The other options refer to different concepts within electrical circuits. 'Pressure of electric charge' would relate more closely to voltage, while 'amount of resistance' is related to how much a component in the circuit opposes current flow. 'Power of the circuit' concerns the rate at which energy is transferred within the circuit, which depends on both current and voltage.