Magnetic Effects Of Current Question 285
Question: A proton (or charged particle) moving with velocity v is acted upon by electric field E and magnetic field B. The proton will move undeflected if [MP PMT 1995, 2003; UPSEAT 2002; DPMT 2003]
Options:
A) E is perpendicular to B
B) E is parallel to v and perpendicular to B
C) E, B and v are mutually perpendicular and $ v=\frac{E}{B} $
D) E and B both are parallel to v
Show Answer
Answer:
Correct Answer: C
Solution:
In this case $ |\overrightarrow{F_{e}}|\ =\ |\overrightarrow{F_{m}}| $ and both forces are opposite to each other.
BETA
