Electronic Basics

Conductors

Metals like copper and aluminum (metals) are widely used in wiring for their excellent conductivity.

Insulators

Materials such as rubber, glass, and plastic, resist electricity flow so they are often used to coat wires to prevent accidental contact.

Power

rate of electrical energy transferred or converted into work, and it is measured in watts.

Power Formula

Power (watts) = voltage (volts) x current (amperes)

Ohm’s Law

defines the relationship between voltage, current, and resistance in an electrical circuit.

Ohm’s Key Finding

the amount of electric current flowing through a conductor is directly proportional to the voltage imposed on it. In other words, one volt of pressure is required to push one amp off current through one ohm of resistance.

Ohm’s Key Finding

often described as the electrical force or pressure that drives the flow of electrons through a conductor. It’s the potential difference between two points in a circuit.

Voltage (V)

often described as the electrical force or pressure that drives the flow of electrons through a conductor. It’s the potential difference between two points in a circuit.

Resistance (R)

the opposition to current flow in a circuit. It’s measured in ohms and depends on the material, size, and temperature of the conductor.