A) \[1\times {{10}^{-5}}T\]
B) \[2\times {{10}^{-5}}T\]
C) \[3\times {{10}^{-5}}T\]
D) \[4\times {{10}^{-5}}T\]
Correct Answer: B
Solution :
\[B=\frac{{{\mu }_{0}}}{4\pi }\times \frac{2i}{r}={{10}^{-7}}\times \frac{2\times 1}{{{10}^{-2}}}=2\times {{10}^{-5}}\] Tesla
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