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Choose the letter of the BEST correct answer. Write the chosen letter in your notebook. 1. It provides a graphical representation of an electric field A. graph B. field lines C. parabola D. xy-coordinate 2. When two charges exert forces simultaneously on a third charge, the total force acting on that charge is the vector sum of the forces that the two charges would exert individually. This principle is known as the A. interference of charge B. Coulomb's principle C. superposition of forces D. superposition of electric field 3. Which of the following will likely occur or happen to the electric field of force of an isolated positive charge? It will move A. radially outward B. radially inward C. parallel D. perpendicular 4. An electron immersed in an electric field of 20 N/C. What force does it feel? A. 3.2 X 10 #N B. 2.2 X 10 N C. 12 X 10-18 N D. 0.2 x 10 N 5. Two charged objects attract each other with a certain force. If the charges on both objects are doubled with no change in separation, what will happen to the force between them? A. quadruples B. doubles C. halves D. increases, but can't say how much