(D) toward the top of the page 148. A cloud contains spherical drops of water of radius and charge Assume the drops are far apart. R Q. If two droplets happen to combine into a single larger droplet, the new potential at the surface of the larger droplet V is most nearly equal to (A) 2V0 (B) (C) (D) V0 V0 V0 protons and an electron are assembled along a line, as shown above. The distance between the electron and each proton is What is the work done by an external force in assembling this configuration of charges? a. (A) (B) (C) ke2/2a (D) 3ke2/a –2ke2/a –3ke2/2a
(D) toward the top of the page 148. A cloud contains spherical drops of water of radius R and charge Q. Assume the drops are far apart. If two droplets happen to combine into a single larger droplet, the new potential V at the surface of the larger droplet is most nearly equal to (A) 2V0 (B) V0 (C) V0 (D) V0 protons and an electron are assembled along a line, as shown above. The distance between the electron and each proton is a. What is the work done by an external force in assembling this configuration of charges? (A) –2ke2/a (B) –3ke2/2a (C) ke2/2a (D) 3ke2/a
old_ap_electrostatics_mcqs.docx