CUET · PHYSICS · PYQ PAPER 2025
A positively charged particle moving along + X axis, enters a region of uniform magnetic field directed vertically upward in + Z direction. The particle will
- A move in a circular path with an increased speed
- B move in a circular path with a uniform speed
- C move in a circular path with a decreased speed
- D get deflected in a vertically upward direction
Answer & Solution
Correct Answer
(B) move in a circular path with a uniform speed
Step-by-step Solution
Detailed explanation
\( \vec{F} \propto (\hat{i} \times \hat{k}) = -\hat{j} \) Since \( \vec{F} \perp \vec{v} \), speed is uniform and motion is circular. The particle will move in a circular path with a uniform speed.
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