Question

Silver 1.59 × 10–8
Tungsten 5.6 × 10–8
Nichrome 1.1 × 10–6
Germanium 4.6 × 10–1
Air 1.3 × 1016
Drinking water 2 × 10–1
i) In the above materials which has more resistivity
ii) The resistivity of filament used in electric bulb
iii) Which material has more conductivity
iv) Which material is used as heating element.

Answer 1

Answer:

1.air

2. 5.6 × 10-8

3. Silver

4. Nichrome