1
VITEEE 2021
MCQ (Single Correct Answer)
+1
-0

A long straight wire is carrying a current of $$12 \mathrm{~A}$$. The magnetic field at a distance of $$8 \mathrm{~cm}$$ is $$\left(\mu_0=4 \pi \times 10^{-7} \mathrm{~N} / \mathrm{A}^2\right)$$

A
$$2 \times 10^{-4} \mathrm{~Wb} / \mathrm{m}^2$$
B
$$3 \times 10^{-5} \mathrm{~Wb} / \mathrm{m}^2$$
C
$$4 \times 10^{-4} \mathrm{~Wb} / \mathrm{m}^2$$
D
$$4 \times 10^{-5} \mathrm{~Wb} / \mathrm{m}^2$$
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