Question

In: Physics

An electron beam moves toward a cathode ray tube screen, which is 50 cm away from...

An electron beam moves toward a cathode ray tube screen, which is 50 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. Δz = ?

Solutions

Expert Solution

genius_generous answered 11 months ago
Next > < Previous

Related Solutions

An electron in the beam of a cathod-ray tube is accelerated by a potential difference of...
An electron in the beam of a cathod-ray tube is accelerated by a potential difference of 2.20 kV . Then it passes through a region of transverse magnetic field, where it moves in a circular arc with a radius of 0.185 m . 1) What is the magnitude of the field? Express your answer with the appropriate units.
The electrons in a cathode ray tube are emitted by a hot filament cathode and are...
The electrons in a cathode ray tube are emitted by a hot filament cathode and are accelerated by an electric field applied between the cathode and two orthogonal pairs of parallel plate electrodes. The beam passes through the gap between the electrodes and can be deflected up and down, or left and right if the parallel plates are appropriately biased. As the electrons pass through the electrodes, their kinetic energy increases. Assume the electrons are emitted from the cathode with...
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 4.40 cm of the tube’s length; then they move at essentially constant velocity another 45.0 cm before hitting the screen. a.How long does it take them to travel the length of the tube? b.Find the speed of the electrons when they hit the screen. c.How long does it take them to travel the length of the...
Electrons in a cathode ray tube start from rest and are accelerated through a potential difference...
Electrons in a cathode ray tube start from rest and are accelerated through a potential difference of 11.6 kV. They are moving in the +x-direction when they enter the space between the plates of a parallel plate capacitor. There is a potential difference of 320 V between the plates. The plates have length 8.93 cm and are separated by 1.10 cm. The electron beam is deflected in the negative y-direction by the electric field between the plates.    where P...
Electrons in a cathode ray tube start from rest and are accelerated through a potential difference...
Electrons in a cathode ray tube start from rest and are accelerated through a potential difference of 13.8 kV. They are moving in the +x-direction when they enter the space between the plates of a parallel plate capacitor. There is a potential difference of 313 V between the plates. The plates have length 7.81 cm and are separated by 1.10 cm. The electron beam is deflected in the negative y-direction by the electric field between the plates. where P =...
Electrons in a cathode ray tube start from rest and are accelerated through a potential difference...
Electrons in a cathode ray tube start from rest and are accelerated through a potential difference of 12.2 kV. They are moving in the +x-direction when they enter the space between the plates of a parallel plate capacitor. There is a potential difference of 338 V between the plates. The plates have length 9.37 cm and are separated by 1.10 cm. The electron beam is deflected in the negative y-direction by the electric field between the plates. where P =...
X-ray filter An X-ray beam from a tube with molybdenum anode (?=42) at an acceleration voltage...
X-ray filter An X-ray beam from a tube with molybdenum anode (?=42) at an acceleration voltage of ?=60 kV contains, besides the braking continuum, a distinct ?? peak at 0.71 Å and a smaller ?? peak at 0.63 Å. To filter out the ?? line for diffraction experiments, a zirconium filter (?=40) can be used. Justify this with the help of Mosley's law and draw the X-ray spectrum of molybdenum superimposed with the absorption effect of zirconium. Is the main...
In the “old days”, televisions were made from Cathode Ray Tubes whereby a beam of electrons...
In the “old days”, televisions were made from Cathode Ray Tubes whereby a beam of electrons rapidly swept across the inside of the screen as a result of strategic deflections from magnetic fields acting on the beam. Suppose that Frank has a massive 2000 inch TV in which the image has to be updated 100 times per second (to minimize the appearance of “flicker”) and that there are 100,000 rows. (a) Show that the electron beam moves across the screen...
A. A color television tube also generates some X-rays when its electron beam strikes the screen....
A. A color television tube also generates some X-rays when its electron beam strikes the screen. What is the shortest wavelength of these X-rays in picometers, if a 34.6 kV potential is used to accelerate the electrons? (Note that TVs have shielding to prevent these x rays from exposing viewers.) B. What is the smallest angle in degrees that L makes with the z -axis for an l = 1 electron? C. What is the shortest wavelength x-ray radiation (in...
A siren emitting a sound of frequency 1100 Hz moves away from you toward the face...
A siren emitting a sound of frequency 1100 Hz moves away from you toward the face of a cliff at a speed of 15 m/s. Take the speed of sound in air as 330 m/s. (a) What is the frequency of the sound you hear coming directly from the siren? (Give your answer to at least one decimal place.) Hz (b) What is the frequency of the sound you hear reflected off the cliff? (Give your answer to at least...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT