Resistors are passive electrical components that control and limit electric current by opposing its flow. This video explains the concept of resistance, its causes at the atomic level, and factors like temperature and impurities that affect it. It covers the measurement of resistance in ohms, introduces conductors and insulators, and discusses the role of resistors in both DC and AC circuits. The script also explains how resistors function in series circuits, contributing to voltage drops and current control, and outlines various types of resistors such as Fixed, Variable, Carbon Film, and Metal Film resistors.
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