Problem 17.41 Part A An electron moves between two parallel plates, as Determine
ID: 585061 • Letter: P
Question
Problem 17.41 Part A An electron moves between two parallel plates, as Determine the magnitude of the electric force that the electric field exerts on an electron between the plates shown in (Figure 1). A 480-N/C E field points from the upper plate toward the lower plate. A0.12-T magnetic field points into the plane of the picture Express your answer to two significant figures and include the appropriate units. Figure 1 of 1 Value Units Submit My Answers Give Up Part B Determine the direction of the electric force that the electric field exerts on an electron between the plates in upward downward Submit My Answers Give UpExplanation / Answer
A) Electric Force = F = -qE = -1.6*10^-19*480 = -7.68*10^-17 N
B) As the electric field is downward and charge is negative, so the direction of electric force will be upward.
C) Now magnetic force = Electric force
qvB = qE =======> v= E/B
v = 480/0.12 = 4000 m/s
D) The electron should move to the right.