Question

-ROSTER-2019 Problem 3 3of 4 Part A Review Should the bottom plate be charged positive or negative rolative to the top plate if you want the electron to turn to the right? A problem of practical interost is to make a beam of electrons turn a 90 corner. This can be done with the parallel-plate capactor shown in the figure (Figure 1). An electron with kinetic energy 4.0x10-17 J enters through a small hole in the bottom plate of the capacitor Positive Negative Previous Answers Correct Part B What strength electric field is needed if the electron is to emerge from an exit hole 1.0 cm away from the entrance hole, traveling at right angles to its original direction? Express your answer to two significant figures and include the appropriate units Figure 1 of 1 E3.3 10 N/C Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Electrons Provide Feedback Next )

Answer 1