A cylindrical conductor with a diameter of 0.1 mm carries a current of 90 mA. The current density (in $ \text{A/m}^2 $) is:

Question

$1.2 \times 10^{7}$

$2.4 \times 10^{7}$

$3 \times 10^{6}$

$6 \times 10^{6}$

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