The diagram shows an uniform electric field. Point A + + + + Which direction will an electron move if placed at Point A? up down С. left D. right AB.

4. A particle with 4 nanoCoulomb charge produces an electric field with a magnitude of 2.0 N/C at a point. How far away is the point from the particle?

Q7. Four point-charges are placed at the corners of a square, as shown in Figure 2. What is the magnitude of the net electric field at the center of the square? Take q = 1.0 µC and a = 2.0 cm. - q I -q ----> A) 1.3x108 N/C B) 6.4x10' N/C C) 2.5x108 N/C D) 1.8×108 N/C E) zero +q + ↑ a I I +q

1.  Common static electricity involves charges ranging from nanocoulombs to microcoulombs. (a) How many electrons are needed to form a charge of −9.10 nC? electrons (b) How many electrons must be removed from a neutral object to leave a net charge of 0.520 µC? electrons   2. What net charge would you place on a 412 g piece of sulfur if you put an extra electron on 1 in 1012 of its atoms? (Sulfur has an atomic mass of 32.1.)   4. What is the repulsive force between two pith balls that are 10.0 cm apart and have equal charges of −39.0 nC?-------N   6.How far apart (in mm) must two point charges of 65.0 nC (typical of static electricity) be to have a force of 5.50 N between them?     7. a.What is the direction of this force (away from or toward the +6 µC charge)? away from the +6 µC chargetoward the +6 µC charge ---------mm A test charge of +9 µC is placed halfway between a charge of +6 µC and another of +7 µC separated by 17 cm. (b) What is the magnitude of the force (in N)…

15. Two charges of equal magnitude but opposite signs, Q and - Q, are placed as shown in the figure. Where does the net electric field point to the right? A. at points E and F only B. at points C and D only C. at points A and B only D. at points A, B, E and F only E. at point C only AB+ с D O E F

QUESTION 10 What is the electric-field strength between the identical, rectangular, conducting plates of a parallel-plate capacitor in which the charge on the plates is + 5.0 pC? Assume that each plate is 4.0 cm long and 3.0 cm wide. a. 390 N/C b. 150 N/C C. 230 N/C d. 310 N/C e. 470 N/C

Question: Answer the following question about electric charge/field: a. The static electric field INSIDE an object made from a conducting material is a. zero everywhere. b. constant, but not necessarily zero. c. greater than the electric field just outside the object. perpendicular to the surface of the object. d. unaffected by the presence of the conductor.   b. Knowing this, the Electric charges of opposite sign will a. attract each other. b. exert no force on each other. c. repel each other. d. repel and attract each other. e. either repel or attract each other depending on the magnitudes of the charges.