Question

Q 26 On which of the following factors does
the magnitude of the conductivity of
substances depend?
Ops: A
All of the mentioned options
B. Temperature
C.
Nature of the substance
D.
Pressure​

Answer 1

The conductivity of a material depends on (a) All the mentioned options.

Explanation:

• The conductivity of a material increases with increasing temperature.
• The reason behind this dependency is that as the temperature increases the ions tend to move faster leading to increased conductivity.
• The conductivity of a substance majorly depends on the number of free electrons which varies with the nature of the material as different materials have different electron densities.
• The conductivity of a material does not have a strong dependency on the pressure but however, in the case of gases, pressure can play a significant role.