COMEDK · Physics · 21. Magnetic Effects of Current
A charged particle is released from rest in a region of space in which steady and uniform electric and magnetic fields are parallel to each other. The particle will move in a
- A Cycloid
- B Straight line
- C Circle
- D Helix
Answer & Solution
Correct Answer
(B) Straight line
Step-by-step Solution
Detailed explanation
The force on a charged particle moving in electric and magnetic fields is given by the Lorentz force equation: \(\vec{F} = q(\vec{E} + \vec{v} \times \vec{B})\). Given that the electric field \(\vec{E}\) and magnetic field \(\vec{B}\) are parallel, let \(\vec{E} = E\hat{k}\) and…
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