A component of a given size that offers low resistance is considered a good conductor. On the other hand, a component of identical size that provides higher resistance is termed a poor conductor. An insulator, of the same size, offers ...

A resistor is a component that, despite its size, offers some appreciable resistance to the flow of electric current. It acts as a hindrance to the motion of electrons within the circuit.

The motion of electrons in a conductor is impeded by the attraction of the atoms through which they move. This resistance slows down the flow of electrons in the conductor.

The motion of electrons within an electric circuit constitutes the electric current. Electrons move through conductors, but their motion is hindered by the resistance encountered within the material.

Different components in an electric circuit show varied current levels because some components provide an easy path for the flow of electric current, while others resist it.