In this example, we will analyze the motion of an electron that is released in an electric field. The terminals of a 100 V battery are connected to two large, parallel, horizontal plates 1.0 cm apart. The resulting charges on the plates produce an electric field Ē in the region between the plates that is very nearly uniform and has magnitude E = 3.0×104 N/C. Suppose the lower plate has positive charge, so that the electric field is vertically upward, as shown in (Figure 1). (The thin pink arrows represent the electric field.) If an electron is released from rest at the upper plate, what is its speed just before it reaches the lower plate? How much time is required for it to reach the lower plate? The mass of an electron is me = 9.11 x 10-31 kg The thin arrows represent the uniform electric field. 1.0 cm 100 V In this example, suppose a proton (mp = 1.67 × 10-27 kg) is released from rest at the positive plate. What is its speed just before it reaches the negative plate? Express your answer with the appropriate units. HẢ ? |v| = Value Units

In this example, we will analyze the motion of an electron that is released in an electric field. The terminals of a 100 V battery are connected to two large, parallel, horizontal plates 1.0 cm apart. The resulting charges on the plates produce an electric field Ē in the region between the plates that is very nearly uniform and has magnitude E = 3.0×104 N/C. Suppose the lower plate has positive charge, so that the electric field is vertically upward, as shown in (Figure 1). (The thin pink arrows represent the electric field.) If an electron is released from rest at the upper plate, what is its speed just before it reaches the lower plate? How much time is required for it to reach the lower plate? The mass of an electron is me = 9.11 x 10-31 kg The thin arrows represent the uniform electric field. 1.0 cm 100 V In this example, suppose a proton (mp = 1.67 × 10-27 kg) is released from rest at the positive plate. What is its speed just before it reaches the negative plate? Express your answer with the appropriate units. HẢ ? |v| = Value Units

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)...

See similar textbooks

Similar questions

An electron is moving east with a speed 6.00 x 105 m/s in a uniform electric field. Magnitude of the electric field is 2.00 N/C directed to the west. What is the speed of the electron when it travels 0.50 m in the east direction? Please write your answer in km/s.
An electron enters the region of a uniform electric field as shown e. (0, 0) (x, y) + + + + with vi = 6 x 10° m/s and E=215 N/C. The horizontal length of the plates is l = 0.100 m. What is the magnitude of electron's acceleration while it is in the electric field? Assuming the electron enters the field at time t 0, find the time at which it leaves the field search 近

A closed surface is constructed in the space between two large parallel metal plates, where there is a constant electric field E. The magnitude of the field is El=1170 N/C. The numbers (1), (2), and (3) in the simulation label small increments of area of 1.5 cm² on the surface. The direction of each increment is defined to be the direction of a vector out of the surface and perpendicular to the increment's surface area. With that definition assume the direction of the first increment AA, is 65° from the direction of E, that the second increment AÃ, is oriented 90° from the direction of E, and that the third increment AA is oriented 135 from the direction of E. Find the flux through each of the three increments of area. For area AA, Nm²/C For area A For area A Pemb 9- Nm²/C Nm²/C
An electron moving horizontally with velocity u enters in a uniform electric field of strength 15000 V/m. It takes 4.0 nanoseconds to cross the plates and emerges out with a velocity v = 3.5 x 107 m/s. Find the magnitude of u.
Two solid spheres, both of radius 5 cm, carry identical total charges of Q. Sphere A is a good conductor. Sphere B is an insulator and its charge Q is distributed uniformly throughout its volume. Choose from one of the five options to answer the questions below. (i) Compare the magnitudes of the electric fields each sphere separately creates at a radius 4 cm from its center.(ii) Compare the magnitudes of the electric fields each sphere separately creates at a distance of 6 cm from its center. 1. EA>EB=0 2. EA>EB>0 3. EA=EB>0 4. 0<EA<EB 5. 0=EA<EB
The figure provided shows a section of a very long rod of radius a = 1.11 mm and linear charge density 4.49 nC/m. The rod is inside a coaxial cylindrical shell of radius b = 8.30 mm and linear charge density -5.05 nC/m. What is the magnitude and direction of the electric field at a radial distance of 5.80 mm? Magnitude: 1.52*10^4 V/m Direction: O Inward O Outward What is the magnitude and direction of the electric field at a radial distance of 19.4 mm? Magnitude: -5.19*10^2 V/m Direction: Inward O Outward
A ring-shaped conductor with radius a = 3.00 cm has a total positive charge Q = 0.127 nC uniformly distributed around it.(Figure 1) 1. What is the magnitude of the electric field at point P, which is on the positive x-axis at x = 41.0 cm ? 2. What is the direction of the electric field at point P? What is the direction of the electric field at point P? +x-direction -x-direction 3. A particle with a charge of -2.40 μC is placed at the point P described in part A. What is the magnitude of the force exerted by the particle on the ring? 4. What is the direction of the force exerted by the particle on the ring? What is the direction of the force exerted by the particle on the ring? +x-direction -x-direction
A proton is fired horizontally into a 1.0 × 105 N/C vertical electric field. It rises 1.0 cm vertically after having traveled 5.0 cm horizontally. What was the proton's initial speed?
An electron moving parallel to a uniform electric field increases its speed from 2.0××1077 m/sm/s to 4.0××1077 m/sm/s over a distance of 1.9 cmcm. What is the electric field strength?
Two thin parallel conducting plates are placed 2.0 cm apart. Each plate is 2.0 cm on a side; one plate carries a net charge of 8.0 μC, and the other plate carries a net charge of −8.0 μC. What is the charge density on the insidesurface of each plate? What is the electric field between the plates?
Inside a cathode ray tube, an electron is in the presence of a uniform electric field with a magnitude of 315 N/C. (a) What is the magnitude of the acceleration of the electron (in m/s2)? m/s2 (b) The electron is initially at rest. What is its speed (in m/s) after 1.25 ✕ 10−8 s? m/s
A proton is initially moving horizontally at v0= 3x106 m/s when it enters a uniform electric field of 5.6 N/C directed vertically down. What are the horizontal and vertical components of its velocity 2.0 μs after entering the electric field?