A) \[1.5\times {{10}^{-5}}\,T\]
B) \[3.14\times {{10}^{-5}}\,T\]
C) \[6.28\times {{10}^{-5}}\,T\]
D) \[19.6\times {{10}^{-5}}T\]
Correct Answer: C
Solution :
\[B=\frac{{{\mu }_{0}}}{4\pi }\times \frac{\pi i}{r}\Rightarrow B={{10}^{-7}}\times \frac{\pi \times 10}{5\times {{10}^{-2}}}=6.28\times {{10}^{-5}}\,T\]
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