Magnetic Effects Of Current Question 303
An electron is moving along positive x-axis. To get it moving on an anticlockwise circular path in x-y plane, a magnetic field is applied [MP PMT 1999]
Options:
A) Along the positive y-axis
B) Along the positive z-axis
C) Along the negative y-axis
D) Along the negative z-axis
Show Answer
Answer:
Correct Answer: B
Solution:
To move the electron in the xy plane, force on it must be acting in the y-direction initially. The direction of $ \vec{F} $ is known, and the direction of v is known, hence by applying Fleming’s left hand rule, the direction of magnetic field is also determined.
BETA
