Question

Mobility of electrons

• A. decreases with increase in potential difference
• B. increases with increase in potential difference
• C. does not depend on potential difference
• D. decreases with decrease in temperature of conductor

Hint:

Remember, the mobility of electrons is affected by the temperature of the material and its crystal lattice. It is not directly affected by the applied potential difference.

Answer 1

The Correct Option is D

The mobility of electrons depends on the temperature and the structure of the conductor. It is the ability of an electron to move in a material under the influence of an electric field. Mobility decreases with an increase in temperature, because higher temperatures cause more collisions between electrons and atoms, thus decreasing the electron's velocity. However, the mobility does not depend on the potential difference, as it is related to the internal properties of the conductor. Therefore, the correct options are: \[ \text{C: does not depend on potential difference}, \quad \text{E: independent to the temperature of conductor} \]