An argon positive ion fired towards east gets deflected towards south by a magnetic field. The direction of magnetic field is:
- Aupward
- Btowards north
- Cdownward
- Dtowards south
Solution & Step-by-step Explanation
According to Fleming's Left-Hand Rule or the magnetic force formula
F
=q(
v
×
B
):
The direction of motion of the positive charge (velocity
v
) is towards the East.
The direction of the magnetic force (
F
) is towards the South.
Aligning the fingers or computing the cross product shows that the magnetic field
B
must point in the vertically downward direction to deflect an eastward positive charge towards the south.
F
=q(
v
×
B
):
The direction of motion of the positive charge (velocity
v
) is towards the East.
The direction of the magnetic force (
F
) is towards the South.
Aligning the fingers or computing the cross product shows that the magnetic field
B
must point in the vertically downward direction to deflect an eastward positive charge towards the south.