A) \[1.6\times {{10}^{15}}m\text{/}s\]
B) \[6\times {{10}^{-16}}m\text{/}s\]
C) \[3.75\times {{10}^{3}}m\text{/}s\]
D) \[3.75\times {{10}^{2}}m\text{/}s\]
Correct Answer: C
Solution :
Here, \[E=1500\,V\text{/}m,\]\[B=0.4\,Wb\text{/}{{m}^{2}}\] minimum speed of electron along the straight line \[v=\frac{E}{b}\] \[=\frac{1500}{0.4}=3750\] \[=3.75\times {{10}^{3}}m\text{/}s\]
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