4. An electron is in motion at 4.0 × 106 m/s horizontally when it enters aregion of space between two parallel plates, as shown, starting at the negativeplate. The electron deflects downwards and strikes the bottom plate. Themagnitude of the electric field between the plates is 4.0 × 102 N/C andseparation between the charged plates is 2.0 cm.d = 2.0 cma. Referring to the previous image, state the sign of the charge on each electric plate:i. Sign of bottom plate -.ii. Sign of the top plate -.b. Determine the acceleration of the electron between the plates.c. Determine the horizontal distance travelled by the electron when it hits the plate.d. Determine the velocity of the electron as it strikes the plate.

Answered: Image /qna-images/answer/d4a70236-7b66-4c22-9f21-4e804821f1a6.jpg

Answered: 4. An electron is in motion at 4.0 ×…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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1. Calculate the magnitude and direction of the electric field 2.1 m from a long wire that is charged uniformly with a linear charge density of λ= 3.9-10 ° C/m. Hint: You can assume that the wire is infinitely long. If the wire is infinitely long, what happens to the components of the electric field in the plane perpendicular to the z-axis in the figure? Which components of the electric field survive and which don't? 1 P AZ Z xvi X k N/C
8. Two long, charged, thin-walled, concentric cylindrical shells have radii of 3.0 and 6.0 cm. The charge per unit length is -7.0 x 106 C/m on the inner shell and +5.0 x 106 C/m on the outer shell. What are the (a) magnitude E and (b) direction (radially inward or outward) of the electric field at radial distance r = 4.0 cm? What are (c) E and (d) the direction at r= 8.0 cm?
3. A uniform electric field Eis directed along the x-axis between two parallel plates of charge separated by 10 cm. A +20 µC point charge of mass 2 x 10-1ºg is released from rest at a point A next to the positive plate and accelerates to a point B next to the negative plate. Find the speed of the particle at B. 10 ст
35.
8. Three point-like charges are placed as shown in the figure, a = 38.0 cm and b = 54.0 cm. The charge (93) is placed +1.80 µC, 92 = -4.20 μC, half way on the (b) side. Find the magnitude of the electric field at the top left corner. Let q₁ and q3 +5.10 μc. N/C 92
Four charges are distributed around a circle as shown in the figure. The point P is at the center of the circle. The magnitude of the electric field generated by each charge point P is 300 N/C. What is the (a) direction and (b) magnitude of the net electric field at point P? li Q₂ Write your answer the following way: (a) Direction (b) Magnitude (Choose from left/right/up/down); Explanation.......... N/C; Calculation / Explanation:...------
1. Compute the electric field at a point 2.0 cm from q2 along a line running toward q3 in the figure. Express the answer in component notation y 91 = -10 μC 0.10 m X 94 = +5.0 μC 0.10 m 0.10 m 92 –10 μ.C 0.10 m 3 = +5.0 μC
Question 4. Three equal positive charges are at the corners of an equilateral triangle of side a as in Figure 4. Assume the three charges together create an electric field. a) Sketch the electric field lines in the plane of the charges. b) Find the location of one point (other than infinity) where the electric field is zero. c) What are the magnitude and the direction of the electric field at P due to the two charges at the base? Figure 4:
5. Two parallel, metal plates with separation distance d=2.00 cm carry charges of equal magnitude but opposite sign. Assume the electric field has a magnitude of 2,000 N/C. A charged particle with mass 2.00x10-16 kg and charge 1.00x106 C is projected from the center of the bottom negative plate with an initial speed of 1.00x105 m/s at an angle of 45 degrees above the horizontal. Assume the plates are square with side length 20.0 cm. a. Where does the particle strike? Answer: b. What is the minimum initial speed the particle must have in order to reach the positive plate. Answer:
Three point charges are located on a circular arc as shown in the figure below. (Take r = 4.40 cm. Let to the right be the +x direction and up along the screen be the +y direction.) +3.00 nC -2.00 nC r 30.0° = 30.0° +3.00 nC P (a) What is the total electric field at P, the center of the arc? E= = ÎN/C + ĴN/C (b) Find the electric force that would be exerted on a -4.75-nC point charge placed at P. F ÎN + ĴN CTICE
3. A particle (q = 3.0 µC, m = 10 g) has a speed of 40 m/s when it enters a region where the electric field that has a constant magnitude of 100 N/C and the direction of the velocity with the electric field is 30 degree . What is the speed of the particle 5 s after it enters this region?
2. Suppose that charge #1 is positioned at the origin (x = 0 m, y = 0 m) and has a magnitude of +2.6 μC, and that charge #2 is positioned on the y-axis at y = 0.16 m and has a magnitude of -4.3 µC. Find the x- and y-components of the electric field on the x-axis at x = 0.21 m. Also, find the x- and y-components of the force on a charge of +6.3 nC placed at this point (x = 0.21 m).

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