A current of | Current Electricity

JEE_MAIN_2021

170321_S1

Question

A current of 10 A exists in a wire of crosssectional area of $5 \mathrm{~mm}^2$ with a drift velocity of $2 \times 10^{-3} \mathrm{~ms}^{-1}$. The number of free electrons in each cubic meter of the wire is $\_\_\_\_$ .

Select the correct option:

$2 \times 10^6$

$625 \times 10^{25}$

$2 \times 10^{25}$

$1 \times 10^{23}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Physics

Easy

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