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2:06 It '53. 88%u e Home...4653 (p /0 Homework 2: Ch 16 - Electric Energy and Capacitance 1. What is the electric potential (Voltage) at P, the center of the square represented in the figure below? w charges are individually brought from infinity and placed at the corners of a square as shown in the figure. Each charge has the identical value +0.. The length of the diagonal of the square is 2a. 2. A parallel plate capacitor with plates of area A and plate separation dis charged so that the potential difference between its plates is V. lfthe capacitor is then isolated and its plate separation is decreased to d/2, what happens to the potential difference between the plates? 3. Which one of the following combinations of units is equivalent to the ohm? Show your computation. a. V/C b. M c. 1/5 d. Y's/Cl e. W/A 4. A proton is released from rest in a uniform electric field of magnitude 385 N/C. a. Find the electric force on the proton. b. Find the acceleration of the proton. c. Find the distance the proton travels in 2.00 pg. 5. A point charge q = +400 vaVmoves from A to B separated by a distance d = 0.180 m in the presence of an external electric field E of magnitude 275 N/C directed toward the right, as in the figure below. if I- A B + 0 ql