Question

(a) When dust air goes past the metal rods, the dust particles become negatively charged. This is because the dust particles

A Lose electrons
B Lose protons
C Gain electrons
D Gain protons




(b) When the dust air flows past the metal plates, the dust particles settle on the metal plates.
Explain why the dust particles settle on the metal plates.



(c) State what happens to the charge on the dust particles when they settle on the metal plates.



(d) Explain why the charge does not build up on the metal plates.

Answer 1

a is B.. Lose protons

Step-by-step explanation:

b is because the dust particles are negatively charged and the metal plate is positively charged this is so when the dust particles are attracted to the metal plate..

b is when the dust particles settle on a metal plate, the protons on the plate are attracted and the electrons on the plate are repelled and they are forced to be earthed..