Question
Question: An electron is moving along positive x-axis. To get it moving on an anticlockwise circular path in x...
An electron is moving along positive x-axis. To get it moving on an anticlockwise circular path in x-y plane, a magnetic filed is applied
A
Along positive y-axis
B
Along positive z-axis
C
Along negative y-axis
D
Along negative z-axis
Answer
Along positive y-axis
Explanation
Solution
The given situation can be drawn as follows
According to figure, for deflecting electron in x-y plane, force must be acting an it towards y-axis.
Hence according to Flemings left hand rule, magnetic field directed along positive y− axis.