(2) An electric charge is stored in a parallel-plate capacitor with capacitance C. The distance between the plates in this capacitor is tripled, keeping the electric charge unchanged. How much work is done from outside in this proc- ess? (a) 3CQ 3Q² (f) (b) 2CQ 2Q² C (e) CQ (h) Q² C (d) //co Q² 2C (e) co 드 Q² 3C

The drawing above shows a graph of a set of equipotential surfaces seen in cross section. Each is labeled according to its electric potential. A 3.3E-7 C point charge is placed at position A. Find the work that is done on the point charge by the electric force when it is moved (a) from A to B, and (b) from A to C

An electron moving parallel to the x axis has an initial speed of 3.14 x 10° m/s at the origin. Its speed is reduced to 1.44 x 10 m/s at the point x = 2.00 cm. (a) Calculate the electric potential difference between the origin and that point. Volts (b) Which point is at the higher potential? O the origin O the point x 2.00 cm O both have the same potential Need Help? Read It Master It

Q) Assume that the distance between A and B is 2m, and A and C is 4m in the Figure. Once a proton moves from A to B along an electric field line in the Figure, the electric field does 6.4x10- 19 J of work on it. The electric potential difference between B and A, and C and A is VBA and VCA, respectively. What is ratio of VBA / VCA? (Coulomb constant is 9x109 Nm²/C², Charge of proton is 1.6x10-19 C) Electric field line A) 0.5 B) 1 C) 2 D) 4 E) 8 Equipotentials