What parts of a socket and bulb are conductors and which are insulators? What is the conducting path through the bulb?

1 Answer

There are two types of socket one screw type and other penter image source here in type

Explanation:

In screw type there is a pin at bottom center which is one connecting to filament.Other is the body of threaded portion.marked screw in.Two wires connect the supply from socket to mains.
Glass bulb, support inside bulb, cover of socket all are insulators.enter image source here Picture credit bolulderfix.org.