Magnetic Effects Of Current Question 315
Question: If an electron is going in the direction of magnetic field $ \overrightarrow{B} $ with the velocity of $ \overrightarrow{v,} $ then the force on electron is [RPMT 1999]
Options:
A) Zero
B) $ e,(\overrightarrow{v,}\cdot \overrightarrow{B}) $
C) $ e,(\overrightarrow{v,}\times \overrightarrow{B}) $
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
$ F=qvB\sin \theta =qvB\sin 0=0 $
BETA
