The new formula for electric field strength (shown inside the box) expresses the field strength in terms of the two variables that affect it. The electric field strength is dependent upon the quantity of charge on the source charge ( Q) and the distance of separation ( d) from the source charge.

r = 0.001000 m The magnitude of the electric field can be found using the formula: The electric field 1.000 mm from the point charge has a magnitude of 0.008639 N/C, and is directed away from the charge. 2) A small metal ball has a charge of (micro-Coulombs). Assuming the ball is a point source,... An electric field is formed by a point charge q, which exerts a force F on a test charge q 0. The electric field E is then given by , or and its electric field lines go from the positive to negative direction, since the electric field is a vector quantity just as is the electric force. Apr 11, 2017 · What's the deal with electricity? Benjamin Franklin flies a kite one day and then all of a sudden you can charge your phone? There's a gap in conceptual understanding! Let's figure out what ...