A) \[2\times {{10}^{-3}}\,Tesla\]
B) \[\frac{2}{10}\,Tesla\]
C) \[2\times {{10}^{-7}}\,Tesla\]
D) \[2\pi \times {{10}^{-6}}\,\text{Tesla}\]
Correct Answer: C
Solution :
\[B={{10}^{-7}}\times \frac{2i}{r}={{10}^{-7}}\times \frac{2\times 1}{1}=2\times {{10}^{-7}}\,T\]
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