A proton moving with a constant velocity, passes through a region of space without change in its velocity. If $E$ $\& B$ represent the electric and magnetic fields respectively, this region may have
A proton moving with a constant velocity, passes through a region of space without change in its velocity. If $E$ $\& B$ represent the electric and magnetic fields respectively, this region may have
- A
$E=0, B \neq 0$
- B
$E \neq 0, B=0$
- C
$E$ and $B$ both parallel
- D
$E$ and $B$ inclined at $45^{\circ}$ angle
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- [JEE MAIN 2022]
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