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A relay is an electrically operated switch. It uses a low-power signal to activate an internal electromagnet, which mechanically pulls a high-power switch closed.
A capacitor's primary job is to store electrical energy in an electric field . You can think of it like a rechargeable battery that charges and discharges very quickly. It consists of two conductive plates separated by an insulating material called a dielectric.
Amplify signals or act as an electronic switch. Two main types: BJT and MOSFET. basic electronics components and their functions pdf
Components like electrolytic capacitors, diodes, LEDs, and ICs must be installed in the correct direction. Reversing them can destroy the part instantly.
Emit visible or infrared light when current passes through them. A relay is an electrically operated switch
End of story.
Bipolar Junction Transistors (BJT - NPN/PNP) and Field-Effect Transistors (MOSFET). You can think of it like a rechargeable
Maintains a completely steady output voltage regardless of changes to load or input power. Quick Reference Summary Table Component Name Circuit Symbol Unit of Measure Primary Function Resistor Ωcap omega Restricts current flow, divides voltages Capacitor Stores electric field energy, filters noise Diode Voltage Drop ( Restricts current to a single direction Transistor hFEh sub cap F cap E end-sub Amplifies signals, acts as a digital switch Inductor Stores magnetic field energy, filters AC signals Integrated Circuit Pins / Model Specific Processes complex instructions, regulates systems Tips for Saving this Guide as a PDF
