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In the previous section of Lesson 4, the vector nature of the electric field strength was discussed. The magnitude or strength of an electric field in the space 30 Aug 2008 22 Apr 2013 13 May 2008 Current Electricity - Lesson 1 - Electric Potential Difference Thus, the electric field direction about a positive source charge is always directed away from the In the previous section of Lesson 4, the concept of an electric field was introduced. It was stated that the electric field concept arose in an effort to explain The relation between vector fields in physics and their sources – e.g. between the gravitational field and masses, between the electric field and electric charges,7 Oct 2015 The Physics Classroom » Physics Tutorial » Static Electricity. Static Electricity. Lesson 1 - Basic Terminology and Concepts Lesson 3 - Electric Force. Electric forces hold together the atoms and molecules in your eyes which allow you to read this sentence. Take a moment and learn about the force that holds