Induction & Lightning

  • 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, then take the quiz.

http://youtu.be/z3SyXilVyTA

[PDF of Slides]

Summary:

• Electrostatic induction is a redistribution of electrical charge in an object caused by the attraction to and repulsion from nearby charges.
• In conductors the electrons can easily move around the object due to electrostatic induction.
• In insulators the electrons shift within each molecule (dielectric polarization).
• Induction causes the attraction in static cling.
• Lightning clouds are negatively charged on the bottom, inducing positive charge on the ground.
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