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CHAPTER 22

CHAPTER 22. Magnetic Forces and Magnetic Fields (Magnetic Fields from Currents). PRODUCING A MAGNETIC FIELD. Permanent Magnet. Current. MAGNETIC FIELD DUE TO CURRENTS. Right hand rule. VIEW FROM THE TOP. VIEW FROM THE SIDE. FORCE BETWEEN PARALLEL CURRENTS.

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CHAPTER 22

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  1. CHAPTER 22 Magnetic Forces and Magnetic Fields (Magnetic Fields from Currents)

  2. PRODUCING A MAGNETIC FIELD Permanent Magnet Current

  3. MAGNETIC FIELD DUE TO CURRENTS Right hand rule

  4. VIEW FROM THE TOP

  5. VIEW FROM THE SIDE

  6. FORCE BETWEEN PARALLEL CURRENTS What if the currents are in opposite directions?

  7. Field and Force

  8. MAGNETIC FIELD OF A LOOP OF CURRENT

  9. COIL AND BAR MAGNET The magnetic field produced by a coil is almost identical to that of a bar magnet.

  10. SOLENOIDS

  11. SOLENOIDS n: Number of turns per unit length Unit of n: m-1=turns/m

  12. B FIELD INSIDE A SOLENOID

  13. APPLICATIONS

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