In today's class we will cover electric forces and electric fields. We will start with looking at the force between two charges, and then add a third charge on the x-axis and off the x-axis (two different cases). In that way we will do some vector addition of forces.
Forces are pretty concrete and tangible. A more abstract way of constructing a theory of electromagnetic interactions involves electric fields. In the second part of today's class we will look at the electric field due to one and two charges.
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