Current

The flow of electric charge through a conductor, measured in amperes (A). It's the rate at which electrons move through a circuit.

concept

Current

Current (symbol: I) is the flow of electric charge through a conductor.

Definition

Current is measured in amperes (A) and represents the rate of flow of electrons. It’s analogous to the flow rate of water in a pipe.

Key Points

  • Current requires a complete circuit path
  • Higher Current = more electrons flowing
  • Common values: 1mA (LED), 100mA (sensor), 1A (motor)