Welcome to Electronics Fundamentals. Electronics is the branch of science and technology that studies the behavior of electrons in circuits and devices. In this field, we analyze how electric current flows through components like resistors, capacitors, and transistors.
In electronics, we work with basic circuit components. Resistors limit current flow, capacitors store electrical energy, and inductors resist changes in current. These components form the building blocks of all electronic circuits.
Ohm's Law is one of the most important equations in electronics. It states that voltage equals current multiplied by resistance. This relationship helps us understand how electrical components interact in a circuit.
Electronic circuits can be arranged in series or parallel configurations. In a series circuit, components are connected in a single path, so the same current flows through all of them. In a parallel circuit, components are connected across common points, allowing current to divide and flow through multiple paths.
In any electronic circuit, three key quantities are voltage, current, and resistance. Voltage is the electrical pressure that pushes electrons through a circuit. Current is the actual flow of electrons. Resistance is the opposition to that flow, which limits how much current can pass through.