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Current Density Vector

The relation,...

Question

The relation, between current density j and drift velocity $v_{d}$ is?

j = n e v_{d}

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j = \frac{n e}{v_{d}}

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j = \frac{v_{d} e}{n}

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j = n e v_{d}^{2}

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Solution

The correct option is C $j = n e v_{d}$
Current flowing in a conductor is given by $I = A n e v_{d}$
Current density $j = \frac{I}{A}$
$⟹ j = n e v_{d}$

Suggest Corrections

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(j)

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