Circuits

• Voltage is the potential difference between two points in a circuit and is measured in volts.
• Power is the rate at which energy is transferred or used, and it is calculated by multiplying voltage and current together.
• Resistance is the opposition to current flow and is measured in ohms (Ω).
• Current is the flow of electrons through a conductor and is measured in amps (A).
• Kirchhoff's voltage law states that the algebraic sum of the voltages around any closed path in an electric circuit is zero.
• In a series circuit, all components are connected end-to-end so that there is only one path for the current to flow through.
• The two main types of circuits are series and parallel.
• Kirchhoff's current law states that the total current flowing into any junction or vertex in an electric circuit is equal to the total current flowing out of it.
• A circuit is the path that an electric current takes from one point to another.
• Ohm's law relates voltage, current and resistance in an electric circuit.
• Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to the resistance of the conductor.
• Resistance is the measure of opposition to the flow of electric current in a circuit.