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STD 12 - 4. Moving charges and magnetism — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 4. Moving charges and magnetism4 Marks
Question
Given below are two statements: One is labelled as Assertion $(A)$ and the other is labelled as Reason $(R).$

Assertion $(A)$ : In an uniform magnetic field, speed and energy remains the same for a moving charged particle.

Reason $(R)$ : Moving charged particle experiences magnetic force perpendicular to its direction of motion.

✓

Answer

$\overrightarrow{ F }= q (\overrightarrow{ v } \times \overrightarrow{ B })$

$\overrightarrow{ F } \perp \overrightarrow{ V }$

Work done $=\overrightarrow{ F } \cdot \overrightarrow{ S }$

Work done $=0$

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