Index for
Chapter 18
Magnetic Fields

1. Magnetic Poles

• magnetic force
• bar magnets
• compass needle
• Like poles repel each other.
  Opposite poles attract each other.

2. Magnetic Field

• magnetic field
• magnetic field lines
• dipole field
• The magnetic field points in the direction a compass would point.

3. Magnetic Monopoles

4. Magnetic Field Strength

5. Field of a Long Straight Wire

6. Field of a Circular Wire

7. Magnetic Dipole Moment

• $\mu =IA$

8. Moving Charges

• $F=qvB\sin \theta$
• $F=ILB\sin \theta$

9. Moving in Circles

• $r=\frac{mv}{qB}$