A potential difference V is applied to a conductor of length L, diameter D. How are electric field E, the drift velocity `v_(d)` and the resistance R affected when (i) V is doubled (ii)L is doubled (iii) D is doubled ?

Explanation

To analyze how the electric field \( E \), drift velocity \( v_d \), and resistance \( R \) are affected by changes in potential difference \( V \), length \( L \), and diameter \( D \) of a conductor, we can use the following formulas:

1. **Electric Field \( E \)**:
\[ E = \frac{V}{L} \]

2. **Drift Velocity \( v_d \)**:
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