What is the three basics of electrical?

The three basics of electricity are voltage, current, and resistance. Voltage, measured in volts, represents the electrical potential difference that drives current through a circuit. Current, measured in amperes, is the flow of electric charge, while resistance, measured in ohms, is the opposition to that flow. Together, these three concepts are described by Ohm's Law, which states that voltage equals current multiplied by resistance (V = I × R).