Question

c) In the image alongside, identify parts W and X.
W
(i) W — second terminal, X — filament
(ii) W - second terminal, X — wires
(iii) W - first terminal, X-filament
(iv) W-wires, X-filament​

Answer 1

W : First terminal (positive terminal)

X : Filament (Tungsten)

Detailed Discussion:

• The attached photo shoes of filament bulb.

• The filament is made up of tungsten which has a high resistance and high melting point. When current flows to the tungsten filament, it produces a lot amount of heat which in turn produces light

• A filament bulb has two terminals, the metallic plate(W) is the 1st terminal and the case is the nagative terminal .

• The bulb is enclosed in an airtight glass container, so that there is no entry of oxygen, this prevents burning of the tungsten filament.

$\star$ Hope It Helps.