Electromagnetism

  • Due Nov 17, 2016 at 8:59am
  • Points 2
  • Questions 2
  • Available until Nov 17, 2016 at 8:59am
  • Time Limit None
  • Allowed Attempts Unlimited

Instructions

Watch the following video lecture segment:

http://youtu.be/6v5-mMv8YLE

[PDF of Slides]

Summary:

• Moving electrical charges experience a force from a magnetic field, called the Lorenz force.
• A changing magnetic field induces a voltage creating an current in a circuit, an extreme example is an EMP (ElectroMagnetic Pulse).
• An induced current produces its own secondary magnetic field (Self-induction).
• The magnetic field resulting from an induced current is always opposite from the magnetic field that induced it (Lenz’s Law).
• Oscillating electric and magnetic fields produce electromagnetic waves (e.g., light).
Have a question? Go here.  

 

Only registered, enrolled users can take graded quizzes