What is resistor: Learn resistor types

Learn resistor types, color code charts, formulas, and solved examples for JEE, NEET, and CBSE 2025. Boost Physics scores with expert tips. In electrical and electronic circuits, the resistor is a passive circuit component that is used to introduce electrical resistance in the flow of electric current through the circuit. Therefore, the primary function of a resistor is to control the amount of current through a circuit. Resistor is a passive electronic component having that creates resistance in the flow of electric current. They are primarily used for limiting or regulating the current flow. A resistor is a passive component that implements electrical resistance in a circuit. Learn about its symbols, values, power dissipation, and applications in electronics and electrical networks.