Electric Fields

January 12, 2010

Today in class we read the Electric Fields handout, highlighted a few notations, and elaborated on new diagrams.

• In a diagram of a positive point charge, the arrows, or electric field line, they point outwards of the point charge. In a negative point charge, they point inwards towards the point charge.
• The density of the electric field line patterns designate the strength of the electric field.
• When the anode meets the cathode, or positive point charge meets the negative point charge, the electric field lines of the positive point charge are directed towards the negative point charge.
• In between the point charges, no field exists.
• We were assigned Transparency 20-1 and Transparency 21-1, as well as finishing up the previous days assignment: The study guide of chapter 21, fill in the blanks.