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  4. A positive charge enters in the region of transverse magnetic field as shown in figure. Velocity of charge is in such a way that charge passes through both inward and outward magnetic field regions, then possibly correct path of the charge is <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-ci0venedyk3jwxpd.jpg />

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Q. A positive charge enters in the region of transverse magnetic field as shown in figure. Velocity of charge is in such a way that charge passes through both inward and outward magnetic field regions, then possibly correct path of the charge is
Question

NTA AbhyasNTA Abhyas 2022

Solution:

When it enters in first region then
$\overset{ \rightarrow }{F}=q\left(\overset{ \rightarrow }{v} \times \overset{ \rightarrow }{B}\right)$
$+ve\left(\overset{ \rightarrow }{v} \times \overset{ \rightarrow }{B}\right)$
Direction of $\overset{ \rightarrow }{F} \, $ will be as shown in figure.
Solution