Rezistilojn

Rezistilojn, often translated as "resistors," are fundamental passive electronic components. Their primary function is to oppose the flow of electric current. This opposition is quantified by a property called resistance, measured in ohms (Ω). When current flows through a resistor, it dissipates electrical energy, typically as heat.

Resistors are essential in virtually all electronic circuits. They are used for a variety of purposes, including limiting current to protect sensitive components, dividing voltage to create specific voltage levels, setting the gain of amplifiers, and tuning the frequency of oscillators. The precise resistance value of a resistor is crucial for the correct operation of a circuit.

Resistors are manufactured in a wide range of materials and designs. Common types include carbon composition, carbon film, metal film, and wire-wound resistors. The choice of resistor type depends on factors such as required precision, power handling capabilities, and cost. Surface-mount resistors (SMD) and through-hole resistors are the two main categories based on their physical packaging for circuit board assembly.

The resistance value of a resistor can be indicated by color bands or numerical markings. These markings specify the nominal resistance and tolerance, which is the acceptable range of deviation from the nominal value. Understanding these markings is vital for selecting the correct resistor for a given application.