A) 5 ampere
B) 10 ampere
C) 500 ampere
D) 1000 ampere
Correct Answer: A
Solution :
\[B=\frac{{{\mu }_{0}}}{4\pi }\cdot \frac{2i}{r}\] Þ \[{{10}^{-5}}={{10}^{-7}}\times \frac{2i}{(10\times {{10}^{-2}})}\] Þ \[i=5A\]
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