Question

X is the negative terminal of an electric bulb.
Y is the positive terminal of an electric bulb.
Identify X and Y.

X-metal casing, Y-bottom of the bulb

X-filament, Y-bottom of the bulb

X-bottom of the bulb, Y- metal casing

X-metal casing, Y-filament​

Answer 1

Explanation:

X _ bottom of the bulb, Y _ metal casing

Answer 2

Answer:

The correct option is X- a metal casing, Y-bottom of the bulb.

Explanation:

• The bulb described here is an Incandescent bulb with a wire filament inside it which heats and the bulb glows.

• The structure of Incandescent bulbs is composed of sealed airtight glass called the envelope or bulb. An electric current is passed through filament or wire made up of tungsten which is enclosed in the glass.

• Electric bulb has two terminals that are negative terminal or the metal casing is in the shape of a spiral and a positive terminal located at the base of the electric bulb which is slightly bulged. These 2 terminals are connected with filament and are fixed on their position.