Question

The resistivity of pure germanium is 6 x 10-6 Ωm. What is the resistance across the length of a

block of pure germanium of dimensions 50 cm x 2 cm x 1 cm ?

Ans. 0.015 Ω​

Answer 1

Answer:

Silver 1. 59 × 10−8

Copper 1. 72 × 10−8

Gold 2. 44 × 10−8

Aluminum 2. 65 × 10−8

Tungsten 5. 6 × 10−8

Iron 9. 71 × 10−8

Platinum 10. 6 × 10−8

Steel 20 × 10−8

Lead 22 × 10−8

Manganin (Cu, Mn, Ni alloy) 44 × 10−8

Constantan (Cu, Ni alloy) 49 × 10−8

Mercury 96 × 10−8

Nichrome (Ni, Fe, Cr alloy) 100 × 10−8

Semiconductors[1]

Carbon (pure) 3.5 × 105

Carbon (3.5 − 60) × 105

Germanium (pure) 600 × 10−3

Germanium (1−600) × 10−3

Silicon (pure) 2300