Electricity

• In a series circuit, the total resistance is equal to the sum of the individual resistances.
• The current flowing through all components in a parallel circuit is the same.
• The current is the same at all points in a series circuit.
• In a parallel circuit, the voltage across each component can be different.
• Ohm's law states that the voltage applied across a conductor is equal to the current flowing through it multiplied by its resistance.
• A fuse or circuit breaker protects electrical circuits by breaking the circuit if there's too much current flow.
• The voltage across an LED decreases as it gets hotter due to its internal resistance increasing.
• An ammeter measures the amount of electrical charge passing through a component per second.
• A diode allows current flow only in one direction (anode to cathode).
• An electric motor converts electrical energy into mechanical energy.
• A voltmeter measures the potential difference between two points on a circuit.
• When two resistors are connected in parallel, their total resistance is less than either individual resistance.
• When an alternating current flows through a coil of wire, a magnetic field is created around the coil.
• A transistor acts like a switch controlled by another signal.