9 positive charges of magnitude Q are symmetrically placed on the circle of radius r. Later one of the charges is removed. What is the magnitude of the electric field at the center of the circle? 9Q I. 2ne,r2| Q II. 9nE,r² Q III. TEgr Cos(2n/) 9Q IV. 4TE,r2 Q V. cos("/9) 47t£gr2 COS(T/g)|

9 positive charges of magnitude Q are symmetrically placed on the circle of radius r. Later one of the charges is removed. What is the magnitude of the electric field at the center of the circle? 9Q I. 2ne,r2| Q II. 9nE,r² Q III. TEgr Cos(2n/) 9Q IV. 4TE,r2 Q V. cos("/9) 47t£gr2 COS(T/g)|

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter15: Electric Forces And Fields

Section15.3: Electric Fields

Problem 15.3QQ: A test charge of + 3 C is at a point P where the electric field due to other charges is directed to...

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A test charge of + 3 C is at a point P where the electric field due to other charges is directed to the right and has a magnitude of 4 106 N/C. If the test charge is replaced with a charge of 3 C, the electric field at P (a) has the same magnitude as before, but changes direction, (b) increases in magnitude and changes direction, (c) remains the same, or (d) decreases in magnitude and changes direction.
A test charge of + 3 C is at a point P where the electric field due to other charges is directed to the right and has a magnitude of 4 106 N/C. If the test charge is replaced with a charge of 3 C, the electric field at P (a) has the same magnitude as before, but changes direction, (b) increases in magnitude and changes direction, (c) remains the same, or (d) decreases in magnitude and changes direction.
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