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Write the mathematical relation between mobility and drift velocity of charge carriers in a coductor. Name the mobile charge carriers responsible for conduction of electric current in (a) an electrolyte (b) an ionised gas.

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### Step-by-Step Solution 1. **Understanding the Concepts**: - **Drift Velocity (v_d)**: This is the average velocity that a charge carrier, such as an electron, attains due to an electric field in a conductor. - **Mobility (μ)**: This is a measure of how quickly a charge carrier can move through a conductor when subjected to an electric field. 2. **Mathematical Relation**: - The relationship between mobility (μ) and drift velocity (v_d) is given by the formula: ...
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