Question

Resistivity of some materials are given. Observe the table and answer the questions

Material

Ρ(Ω-m) at 200C

Copper

1.68 x 10-8

Nichrome

1.10 x 10-6

Silicon

6.40 x 102

Germanium

4.60 x 10-1

a) Name the material which is used to make the heating elements of irons,

toasters?

b) Name the materials which are used to make diodes, transistors and

integrated circuits?​

Answer 1

Answer:

a) Alloys

b) Slicon

I Guess this is correct!