Albert\\\'s laboratory is filled with a constant uniform magnetic field pointing

Question

Albert's laboratory is filled with a constant uniform magnetic field pointing up everywhere. Into this magnetic field Albert throws some charges. He throws the charges in different directions, and observes the resulting magnetic forces on them. Given the sign of each charge and the direction of its velocity, determine the direction of the magnetic force (if any) acting on the charge.
resulting force choices(up, down, north, south, east, west, no force)
1. Positive charge moving south_____
2. Negative moving west______
3. negative not moving at all_____
4. positive moving up_____
5. positive moving east____
6. negative moving down_____
7. negative moving north____
8. postitive not moving at all____
9. positive moving west_____
10. Negative moving south_____
11. negative moving east____
12. positive moving north____

Explanation / Answer

We use right hand rule for positive charges, and left hand rule for negative charges.

1. west
2. south
3. no force
4. no force
5. south
6. no force
7. west
8. no force
9. north
10. east
11. north
12. east

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