Question

(4) An electron is approaching a proton. As it does so... A. The electron is loosing electric potential energy as it enters a region of lower electric potential. B. The electron is loosing electric potential energy as it enters a region of higher electric potential. 1291 21 Toqlar basito u svi9997 Ton Svig tortient lliw C. The electron is gaining electric potential energy as it enters a region of higher electric potential. D. The electron is gaining electric potential energy as it enters a region of lower electric potential. (5) What is the direction of the net electrostatic force on T2TAUOVA U23 AM charge B in the figure to the right? Assume all of the oil olup 10.500 m charges are of equal magnitude. A. Upab 100 bar C Left or to listed OWOH2 B. Down dogus D. Right a w vino a Hos o nosso cols (6) In the figure below, the black box represents a battery. Because this is a non- standard symbol, however, we do not know if the current is flowing in a clockwise or counterclockwise direction. Which of the following additional pieces of information would allow us to determine which direction is correct? A. If the current through point 1 is greater than, less than, or equal to point 2. DEM B. If point 1 is at a higher or lower electric potential than point 2. C. The value of the resistance of R2. D. The voltage drop across each of the resistors. (7) In the figure below, what is the current at the location marked with an X? The arrows show the direction of the current through the grey wires. A. 20A B. 10A C. 13A 20A D. 3A 10A- (8) Which of the following is a true characteristic of the electric field of a conductor in electrostatic equilibrium? A. The electric field is equal to zero outside the conductor. B. The electric field is equal to zero inside the conductor. C. The electric field is tangent to the surface of the conductor D. The electric field is strongest along the sides of the conductor and weakest at the corners / sharpest points

Answer 1

þotewial Bo loosing a region af heigher elaomical elachron The eloctri c as 9+ enters energy fotenhal. ke? ke Energy = Potenial Right Net. B) difterenco Potential the only way. is 7+X = 20 X= 13 A