Chapter 28
This presentation is the property of its rightful owner.
Sponsored Links
1 / 21

CHAPTER 28 PowerPoint PPT Presentation


  • 69 Views
  • Uploaded on
  • Presentation posted in: General

CHAPTER 28. Sources of Magnetic Field. Producing a magnetic field. Permanent Magnet. Current. Magnetic field due to currents. Right hand rule. View from the top. VIEW FROM THE SIDE. Biot-Savart Law. What if the wire isn’t straight?. Infinite Straight wire. P. I.

Download Presentation

CHAPTER 28

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


CHAPTER 28

Sources of Magnetic Field


Producing a magnetic field

Permanent Magnet

Current


Magnetic field due to currents

Right hand rule


View from the top


VIEW FROM THE SIDE


Biot-SavartLaw

What if the wire isn’t straight?


Infinite Straight wire

P

I


Infinite Straight wire (Cont.)

Strategy: write everything in terms of θ

P


Example: Addition of B Fields

Find the B field at point P


Example: Addition of B Fields


Force between parallel currents

What if the currents are in opposite directions?


Field and Force


MAGNETIC FIELD OF A LOOP OF CURRENT


COIL AND BAR MAGNET

The magnetic field produced by a coil is almost identical to that of a bar magnet.


Solenoids


Solenoids

n: Number of turns per unit length

Unit of n: m-1=turns/m


Ampere’s Law


Right hand rule, again


Long Straight Wire, again


Derivation: B Field inside a Solenoid


APPLICATIONS


  • Login