Magnetic Effects Of Current Question 143
Question: An ionized gas contains both positive and negative ions. If it is subjected simultaneously to an electric field along the +x direction and a magnetic field along the +z direction, then [IIT-JEE (Screening) 2000]
Options:
A) Positive ions deflect towards +y direction and negative ions towards ?y direction
B) All ions deflect towards +y direction
C) All ions deflect towards ?y direction
D) Positive ions deflect towards ?y direction and negative ions towards +y direction
Show Answer
Answer:
Correct Answer: C
Solution:
As the electric field is switched on, positive ion will start to move along positive x-direction and negative ion along negative x-direction. Current associated with motion of both types of ions is along positive x-direction. According to Fleming’s left hand rule force on both types of ions will be along negative y-direction.
BETA
