A) \[\frac{r}{2}\]
B) \[\frac{r}{4}\]
C) \[2r\]
D) \[4r\]
Correct Answer: C
Solution :
\[r=\frac{mv}{qB}\] \[r\propto \frac{I}{B}\] So, as B became \[\frac{B}{2},\] r becames 2r,You need to login to perform this action.
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