GEOLOGY

Detailed explanation-1: -Electric Circuit (1) Connect the torch bulb to the positive and negative terminals of a cell by using two pieces of wire. (2) One end of the wire connected to the positive terminal (metal cap) of the cell and the other end of this wire is connected to the metal tip at the base of the torch bulb.

Detailed explanation-2: -In a parallel circuit, as electrical devices are added the resistance decreases. Use one cell, one bulb (no base), and one piece of connecting wire (called an electrical lead) make the bulb light.

Detailed explanation-3: -a conductive “path, ” such as wire, or printed etches on a circuit board; a “source” of electrical power, such as a battery or household wall outlet, and, a “load” that needs electrical power to operate, such as a lamp.