Question

.
(i) Following graph was plotted between V and I values -
What would be the ratios V/I when the potential difference is 0.8v, 1.2v respectively?
Volte(v)
1.67
1.57
1.0+
0.57
0
0.2
0.4
0.8
0.6
I (amp)​

Answer 1

Answer:

Here is your answer...

Corrosion of some metals is an advantage: Example: Corrosion of aluminium is useful.

2 Al2 O3 (s) Thus a protective layer of aluminium oxide is formed on the surface of the metal, which renders the metal passive and prevents its further corrosion.