In the world of electronics, there are a few fundamental components that form the building blocks of electronic circuits. These components include resistors, capacitors, and diodes. Let's take a closer look at each of them:
A resistor is a passive component that restricts the flow of electric current in a circuit. It is represented by a zigzag line symbol. Resistors are commonly used to control the amount of current or voltage in a circuit. For example, if we connect a resistor in series with an LED, it can limit the current flowing through the LED, thus preventing it from burning out.
Capacitors are devices that store electric charge in an electric field. They are represented by parallel plates symbol with a gap in between. Capacitors are used in various ways in circuits. They can store energy, filter out unwanted noise, and even act as timing elements in oscillators and timers.
A diode is an electronic device that allows current to flow in only one direction. It is represented by an arrowhead symbol. Diodes are typically used to rectify alternating current (AC) into direct current (DC) or to protect circuits from reverse polarity. For instance, in a power supply circuit, a diode is often used to convert AC voltage to DC voltage.
By understanding the functions and symbols of these basic components, you will have a solid foundation to build upon in the field of electronics.