A) 20 \[m{{s}^{-1}}\]
B) 40 \[m{{s}^{-1}}\]
C) 8 \[m{{s}^{-1}}\]
D) 5.5 \[m{{s}^{-1}}\]
Correct Answer: B
Solution :
\[v=\frac{E}{B}=\frac{20}{0.5}=40\,m{{s}^{-1}}\]You need to login to perform this action.
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