An electron is at the origin. (a) Calculate the electric potential VA at point A, x = 0.255 cm. (b) Calculate the electric potential VB at point B, x = 0.765 cm. What is the potential difference VB - VA? (c) Would a negatively charged particle placed at point A necessarily go through this same potential difference upon reaching point B? Explain.

A small particle has charge -7.30 μC and mass 3.00×10-4 kg. It moves from point A, where the electric potential is V₁ = 300 V, to point B, where the electric potential VB = 900 V is greater than the potential at point A. The electric force is the only force acting on the particle. The particle has a speed of 5.10 m/s at point A. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Electric force and electric potential. Part A What is its speed at point B? Express your answer in meters per second. V = Submit Part B X Incorrect; Try Again Faster Is it moving faster or slower at B than at A? Slower ΑΣΦ Submit Previous Answers Request Answer Provide Feedback Request Answer ? m/s Next

A point charge of 1 μC is located at the origin, which is the center of a thin spherical shell of 10 cm radius. This shell is uniformly charged with 17 μC. What is the electric field at r=5 cm and r=15?E1 =  V/m,E2=  V/m.What is the electric potential at these points?V1 =  V,V2=  V.

Three point charges, Q1=15.4 μC, Q2=−38.6 μC, and Q3=57.3 μC, are arranged as shown in the figure. The lengths y and x both equal 50.1 cm. Calculate the electric potential V at point A.