A) 0.4 A
B) 4 A
C) 40 A
D) 1 A
Correct Answer: B
Solution :
\[B={{10}^{-7}}\frac{2\pi i}{r}\]; according to question BH = B \[\Rightarrow 5\times {{10}^{-5}}={{10}^{-7}}\times \frac{2\times 3.14\times i}{5\times {{10}^{-2}}}\Rightarrow i=4A\]You need to login to perform this action.
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