Magnetic Effects Of Current Question 263
Question: A charged particle moves with velocity v in a uniform magnetic field $ \overrightarrow{B} $ . The magnetic force experienced by the particle is [CBSE PMT 1990]
Options:
A) Always zero
B) Never zero
C) Zero, if $ \overrightarrow{B} $ and $ \overrightarrow{v,} $ are perpendicular
D) Zero, if $ \overrightarrow{B} $ and $ \overrightarrow{v,} $ are parallel
Show Answer
Answer:
Correct Answer: D
Solution:
$ \overrightarrow{F}=q(\overrightarrow{v}\times \overrightarrow{B}) $ ; if $ \overrightarrow{v}||,\overrightarrow{B} $ then $ \overrightarrow{F}=0 $
BETA
