A potential difference $V$ is applied across a conductor of length $L$ and diameter $D.$ How is the drift velocity, $V_d,$ of charge carriers in the conductor affected when $(i) \ V$ is halved, $(ii) \ L$ is doubled and $(iii) \ D$ is halved? Justify your answer in each case.
CBSE OUTSIDE DELHI - SET 2 AJMER 2015
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- Drift velocity will become half as $\text{v}_{d}\propto\text{V}.$
- Drift velocity will become half as $\text{v}_{d}\propto\text{V}.$
- Drift velocity will remain the same as $V_d$ is independent of diameter $(D).$
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