Practice Test for coulomb;s Law, E-fields and Voltages for point charges as well as basic electric fields.
Try the whole test before looking at the video solutions. If you only look at the solutions you will think, "Wow. What was I worried about? That looks so easy." Solutions always look easy, but you need to try and devlope some specific experience and questions if you are going to learn before the test is graded and returned to you.
by Tony Wayne ...(If you are a teacher, please feel free to use these resources in your teaching.)