- #1
leolaw
- 85
- 1
A horizontal rod is moved northward at a constant velocity throough a magnetic field that points straight down. Which statement is true?
a) The West end of the rod is at higher potential than the east end.
b) The East end of the rod is at higher potential than the West end.
c) The top surface of the rod is at higher potential than the bottom surface.
d) The bottom surface of the rod is at higher potential than top surface.
By applying right hand rule #3, I have my finger pointing to the north, then curve my fingers downward since that the magnetic field is pointing downward. My thumb ends up pointing to the west. Since that this rule assuming that the particle is a positive charge, so I conclude that the west end of the rod is at a higher potential than the east.
Am I right?
a) The West end of the rod is at higher potential than the east end.
b) The East end of the rod is at higher potential than the West end.
c) The top surface of the rod is at higher potential than the bottom surface.
d) The bottom surface of the rod is at higher potential than top surface.
By applying right hand rule #3, I have my finger pointing to the north, then curve my fingers downward since that the magnetic field is pointing downward. My thumb ends up pointing to the west. Since that this rule assuming that the particle is a positive charge, so I conclude that the west end of the rod is at a higher potential than the east.
Am I right?