A) \[\frac{B}{6}\]
B) \[\frac{B}{4}\]
C) \[\frac{B}{3}\]
D) \[\frac{B}{2}\]
Correct Answer: B
Solution :
\[B={{10}^{-7}}\frac{2i}{r}\Rightarrow \frac{B}{B'}=\frac{20}{5}\Rightarrow B'=B/4\]You need to login to perform this action.
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