Question

Do Not Write on This Question Sheet! Physics Lab Quiz Prelab Quiz - Electric Field let has lost 12x 10° electrons. What is the charge of the droplet? (B) 1.9 nC (D)-1.9 HC (E) 1.9 uC 12. A dust particle acquired 12x10 electrons. What is the charge (B) 1.9 nC (C) 1.9 nC (D)-1.9 uC (E) 1.9 uC Two small identical conducting spheres are 0.78 m apart. Sphere A has charge QA-1.2 nC, and sphere B has charge Qn +2.4 nC. fong 13. Which of the following statements about the force that sphere A exerts on sphere B is correct? tude of 4.3x10 N and is directed along AB line away from sphereA (A) It has of (B) it has magnitude of 4.310 N and is directed along AB line toward sphere A. C) it has magnitude of 3.3 x109 N and is directed along AB line away from sphere A (D) It has magnitude of 3.3x10* N and is directed along AB line toward sphere A. (E) Sphere A does not exert any force on sphere B 14. Which of the following statements about the force that sphere B exerts on sphere A is correct? (A) It has magnitude of 4.3x10* N and is directed along AB line toward sphere B. (B) It has magnitude of 4.3x10 N and is directed along AB line away from sphere B (C) It has magnitude of 3.3x103 N and is directed along AB line toward sphere B. (D) It has magnitude of 3.3x103 N and is directed along AB line away from sphere B. (E) Sphere B does not exert any force on sphere A The above spheres are connected by a conducting wire. Find the electrostatic force between the two after equilibrium is reached, where both spheres have the same charge 15. Which of the following statements about the force that sphere A exerts on sphere B is correct? (A) It has magnitude of 5.3x10° N and is directed along AB line and is attractive (B) It has magnitude of 5.3x 10 N and is directed along AB line and is repulsive. (C) It has magnitude of 4.2 10 N and is directed along AB line and is attractive. (D) It h us magnitude of 4.2x109 N and is directed along AB line and is repulsive. A charge of 3.96yC is placed in an electric field of 6.75 N/C. Calculate the force exerted on the charge by the field. (A) 26.7N (B) 26.7 uC (C) 26.7 IN (D) 26.7 N/C (E) 26.7 HN/C

Answer 1