A) \[2\times {{10}^{-3}}T\]
B) \[2\times {{10}^{-1}}T\]
C) \[2\times {{10}^{-1}}T\]
D) \[2\pi \times {{10}^{-6}}T\]
Correct Answer: C
Solution :
The magnetic field produced at a point 1m away from the wire is \[B=\frac{{{\mu }_{0}}}{4\pi }\frac{2i}{r}\] Given, \[i=1A,r=1m\] \[\therefore \] \[B=\frac{{{10}^{-7}}\times 2\times 1}{1}=2\times {{10}^{-7}}\,T\]
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