Electric current is the flow of electric charge through a conductor. It is measured in amperes (A) and is the rate at which electric charge moves through a circuit.
Electric current is created when there is a potential difference or voltage between two points in a circuit. This causes electrons to flow from the negative terminal to the positive terminal, creating a current.
The factors that affect electric current are the voltage or potential difference, the resistance of the circuit, and the type of material the conductor is made of. Higher voltage, lower resistance, and more conductive materials result in a larger electric current.
AC (alternating current) is a type of electric current that changes direction periodically, while DC (direct current) flows in only one direction. AC is commonly used in household electrical systems, while DC is used in batteries and electronic devices.
Electric current can be measured using an ammeter, which is a device that is connected in series with a circuit to measure the flow of current. It is important to make sure the ammeter is connected correctly and has the appropriate range for the current being measured.