In a cathode-ray tube, a beam of electrons (the cathode ray) is deflected in a region...
In a cathode-ray tube, a beam of electrons (the cathode ray) is deflected in a region of electric field on its way to a fluorescent screen, as shown in the figure. Consider the parallel-plate arrangement in the figure, and assume that the electric field E = 400 N/C is uniform between the plates and that E = 0outside the plates. The beam of electrons is injected horizontally with velocity v0 = 5.0 × 106 m/s. If the width of the plates is L = 4.0 cm, by what vertical distance y1 is the beam deflected upon just exiting the plates? If the distance from the end of the plates to the screen is D = 12.0 cm, what is the total vertical deflection y = y1 + y2 upon reaching the screen?
Homework Answers
Add Answer to:
In a cathode-ray tube, a beam of electrons (the cathode ray) is
deflected in a region...
Part B please? A cathode ray tube (CRT) is used to accelerate electrons in some televisions,...
Part B please?
A cathode ray tube (CRT) is used to accelerate electrons in some televisions, computer monitors, oscilloscopes, and x- ray tubes. Electrons from a heated filament pass through a hole in the cathode; they are then accelerated by an electric field between the cathode and the anode (see the figure below). + Assist Che ry View Show Guid rcal deflertion Print Ques Repa te) 1 out of 3 attempts Atter the electrons pass through the anode, they are...
An electron with kinetic energy is moving to the right along the axis of a cathode-ray tube as...
An electron withkinetic energy of 6.0 10-16 J is moving to the right along the axis of a cathode-ray tube as shown below. There is an electric field = (2.0 104 N/C) in the regionbetween the deflection plates. Everywhere else, = 0.(a) How far is the electron from the axis of the tube when it reaches the end of the plates? (mm)(b) At what angle is the electron moving with respect to the axis?(c) At what distance from the axis...
A horizontal beam of electrons initially moving at 3.4 times 10^7 m/s is deflected vertically by...
A horizontal beam of electrons initially moving at 3.4 times 10^7 m/s is deflected vertically by the vertical electric field between oppositely charged parallel plates as shown in the diagram. The magnitude of the field is 2.20 times 10^4 N/C. What is the direction of the field between the plates? up down right left What is the charge per unit area on the plates? What is the vertical deflection d of the electrons as they leave the plates?
An electron beam moves toward a cathode ray tube screen, which is 30 cm away from...
An electron beam moves toward a cathode ray tube screen, which is 30 cm away from the negative electrode. The electrons are accelerated by a potential difference of 14 kV. Estimate the maximum displacement of the electron beam caused by Earth's magnetic field. The average magnetic field at the surface of Earth is roughly BE = 45×10−6T. answer with units
In a cathode ray TV, the velocity selector controls the displacement of the ray in the...
In a cathode ray TV, the velocity selector controls the displacement of the ray in the vertical direction ∆y in order to project an image. The two conducting plates at LV creates the electric field in the y direction. (a) 5 cm2 parallel plates separated by 1 cm are at 3 V . Find Capacitance of the plates, σ of the plates, and E in the middle. (b) Electric field in the −y direction is created by the plates. In...
Q 11) An electron beam moves toward a cathode ray tube screen, which is 20 cm...
Q 11) An electron beam moves toward a cathode ray tube screen, which is 20 cm away from the negative electrode. The electrons are accelerated by a potential difference of 18 kV. Estimate the maximum displacement of the electron beam caused by Earth's magnetic field. The average magnetic field at the surface of Earth is roughly BE = 45×10^−6T. Express your answer with the appropriate units.
In a particular cathode-ray tube, the measured beam current is 50.0 μΑ. How many electrons strike...
In a particular cathode-ray tube, the measured beam current is 50.0 μΑ. How many electrons strike the tube screen every 40.0 s? Need Help? Read It
In a cathode ray tube, electrons are accelerated from rest by a constant electric force of...
In a cathode ray tube, electrons are accelerated from rest by a constant electric force of magnitude 6.40 × 10−17 N during the first 2.60 cm of the tube’s length; then they move at essentially constant velocity another 45.0 cm before hitting the screen. (a)Find the speed of the electrons when they hit the screen. ___m/s (b)How long does it take them to travel the length of the tube? ___ns
The electron that flies in the tube has energy of 12 keV. The cathode-ray tube is oriented so that the electrons move in a horizontal direction from the south to the north. Earth's magnetic field...
The electron that flies in the tube has energy of 12 keV. The cathode-ray tube is oriented so that the electrons move in a horizontal direction from the south to the north. Earth's magnetic field component B = 5.5 * 10-5T is facing downwards. In what direction will the electron beam be tilted? How big is the electron beam deflection x when the electrons in the tube have flown 20 cm?
4. Before television screens were all flat, they used to work by boiling off electrons ("cathode rays") from plates a hot filament and accelerating them towards a phosphor-coated screen. The...
4. Before television screens were all flat, they used to work by boiling off electrons ("cathode rays") from plates a hot filament and accelerating them towards a phosphor-coated screen. The acceleration was performed with a pair of charged parallel plates, as in a capacitor, with small holes to allow the beam to pass through. The beam was steered horizontally and vertically across the screen by varying the magnetic fields in deflecting coils. By varying these deflecting fields, the beam was...
Part B please?
A cathode ray tube (CRT) is used to accelerate electrons in some televisions, computer monitors, oscilloscopes, and x- ray tubes. Electrons from a heated filament pass through a hole in the cathode; they are then accelerated by an electric field between the cathode and the anode (see the figure below). + Assist Che ry View Show Guid rcal deflertion Print Ques Repa te) 1 out of 3 attempts Atter the electrons pass through the anode, they are...
A horizontal beam of electrons initially moving at 3.4 times 10^7 m/s is deflected vertically by the vertical electric field between oppositely charged parallel plates as shown in the diagram. The magnitude of the field is 2.20 times 10^4 N/C. What is the direction of the field between the plates? up down right left What is the charge per unit area on the plates? What is the vertical deflection d of the electrons as they leave the plates?
In a particular cathode-ray tube, the measured beam current is 50.0 μΑ. How many electrons strike the tube screen every 40.0 s? Need Help? Read It
4. Before television screens were all flat, they used to work by boiling off electrons ("cathode rays") from plates a hot filament and accelerating them towards a phosphor-coated screen. The acceleration was performed with a pair of charged parallel plates, as in a capacitor, with small holes to allow the beam to pass through. The beam was steered horizontally and vertically across the screen by varying the magnetic fields in deflecting coils. By varying these deflecting fields, the beam was...
Most questions answered within 3 hours.
-
You draw and keep a single bill from a hat that contains a
$11, $55, $20...
asked 7 minutes ago -
Write a Java program that has the following methods:
findSum - a method that takes in...
asked 8 minutes ago -
A coffee cup calorimeter initially contains 135g of water at
22.0oC. Calcium chloride (21.0g) at the...
asked 11 minutes ago -
A patient is having a magnetic resonance imaging scan (an MRI)
and has neglected to remove...
asked 13 minutes ago -
A student takes a multiple-choice test that has 10 questions.
Each question has two choices. The...
asked 38 minutes ago -
Willie Keeler has a lifetime batting average of 0.341. Assume
that Willie Keeler came to bat...
asked 40 minutes ago -
Which of the following has the highest boiling point?
A) 0.5m NaCl
B) 0.5m C6H12O6
C)...
asked 59 minutes ago -
12. A firm is producing at an output level where
AR = MC > AC >...
asked 56 minutes ago -
Radovilsky Manufacturing Company, in Hayward, California,
makes flashing lights for toys. The company operates its production...
asked 58 minutes ago -
As an athlete exercises, sweat is produced and evaporated to
jelp maintain a proper body temperature....
asked 58 minutes ago -
Which of these macromolecules is most prevalent (by mass) in the
environment? What particular challenge does...
asked 59 minutes ago -
Consider two stocks. Stock A has a standard deviation of 46% and
stock B has a...
asked 1 hour ago