1 / 18

Do now!

Do now!. Can you continue with the ‘Draw the sentences’ from last lesson ? This is to be FINISHED FOR HOMEWORK. Due next Friday 16th September. Today’s lesson. Plotting magnetic fields Electromagnetic induction. Plotting magnetic fields. Can you gather around Mr Porter?.

kana
Download Presentation

Do now!

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Do now! Can you continue withthe ‘Draw the sentences’ from last lesson? This is to be FINISHED FOR HOMEWORK. Due next Friday 16th September.

  2. Today’s lesson • Plotting magnetic fields • Electromagnetic induction

  3. Plotting magnetic fields

  4. Can you gather around Mr Porter? Quietly and sensibly

  5. Plotting magnetic fields

  6. Magnetic field lines The arrows show the direction a compass needle would point at that point in the field. The closer the field lines are, the stronger the magnetic force felt

  7. Field around a bar magnet

  8. Electromagnetic induction • Can you carefully wind your wire around the cardboard tube?

  9. Electromagnetic induction • Put your coil in this circuit. The multimeter should be on the μA scale. μA

  10. Electromagnetic induction • MOVE a magnet in and out of the coil. Watch the meter! μA

  11. Electromagnetic induction If a magnet is moved inside a coil an electric current is induced (produced)

  12. Electromagnetic induction If a magnet is moved inside a coil an electric current is induced (produced) COPY this please!

  13. Electromagnetic induction A electric current is induced because the magnetic field around the coil is changing(the coil ‘cuts through’ the lines of field). COPY this please!

  14. Gather round

  15. http://phet.colorado.edu/sims/faraday/generator_en.jnlp

  16. Can you stick this in please? Generator/dynamo A generator works by rotating a coil in a magnetic field (or rotating a magnet in a coil). A slip-ring commutator produces alternating current (a.c.)

  17. COPY this please!

  18. Let’s try some questions! Pages 215 and 219.

More Related