Question

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 10 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 = 45×10−6 T

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Electrons in old-fashioned cathode ray tubes—as in CRT monitors—are accelerated, starting from rest, by a potential...
Electrons in old-fashioned cathode ray tubes—as in CRT monitors—are accelerated, starting from rest, by a potential difference of 20.0 kV. a. What is their speed after being accelerated by this potential? b. If the Earth’s magnetic field is at a right angle to the electron beam and its magnitude is 0.600 gauss, what is the corresponding magnetic force on an electron? c. Estimate (pretending that the magnetic force is approximately constant as the electron moves through the tube) the displacement...
Consider a cathode ray tube. In this tube, a potential difference of ΔV = 111 V...
Consider a cathode ray tube. In this tube, a potential difference of ΔV = 111 V accelerates electrons horizontally in an electron gun. Positively charged anodes focus the electrons into a beam. Horizontal and vertical deflecting plates use potential differences to steer the beam. In the main part of the cathode ray tube, there is a magnetic field with magnitude B = 3.40·10^-4 T. The direction of the magnetic field is upward and perpendicular to the initial velocity of the...
In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field...
In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.00 × 105 N/C during the first 4.00 cm of the tube’s length; then they move at essentially constant velocity another 54.0 cm before hitting the screen. Find the speed of the electrons when they hit the screen. How long does it take the electrons to travel the length of the tube?
In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field...
In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.00 × 105 N/C during the first 6.00 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 b) How long does it take the electrons to travel the length of the tube?
Older televisions display a picture using a device called a cathode ray tube, where electrons are...
Older televisions display a picture using a device called a cathode ray tube, where electrons are emitted at high speed and collide with a phosphorescent surface, causing light to be emitted. The paths of the electrons are altered by magnetic fields. Consider one such electron that is emitted with an initial velocity of 1.85 107 m/s in the horizontal direction when magnetic forces deflect the electron with a vertically upward acceleration of 5.30 1015 m/s2. The phosphorescent screen is a...
An electron cathode ray tube is accelerated when it passes between two parallel plates separated by...
An electron cathode ray tube is accelerated when it passes between two parallel plates separated by 5.0 cm. If the electron is initially moving with speed vi = 1000 m/s to the right and it has a speed of vf = 5500 m/s after leaving the acceleration region, what is the potential difference deltaV between the plates and which plate, the right or the left, is at the highest potential? Justify your answer.
An electron in a cathode-ray-tube (CRT) accelerates uniformly from 2.00 ? 10^4 m/s to 6.00 ?...
An electron in a cathode-ray-tube (CRT) accelerates uniformly from 2.00 ? 10^4 m/s to 6.00 ? 10^6 m/s over 1.00 cm. A) In what time interval does the electron travel this 1.00 cm? B) What is its acceleration?
An X-ray tube has an applied voltage of 68 kV. What is the most energetic x-ray...
An X-ray tube has an applied voltage of 68 kV. What is the most energetic x-ray photon it can produce? Give your answer in 10-14 J. 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 33.9 kV potential is used to accelerate the electrons? (Note that TVs have shielding to prevent these x rays from exposing viewers.) What is the energy in...
15- An electron is accelerated in a cathode ray tube through a difference in potential of...
15- An electron is accelerated in a cathode ray tube through a difference in potential of 5.0 kV. How much kinetic energy does the electron gain in this process? Write your result in the appropriate units. If your result is 2.0x10-3 N, write the result as 2.0e-3 N Use the letter e and the number of the exponent x next to it to express 10 24- When a 24(omega) resistor is connected to a battery where the terminal-to-terminal voltage is...
In the 2007 film Bladerunner, there is a scene in which Decker is scouring security footage...
In the 2007 film Bladerunner, there is a scene in which Decker is scouring security footage and utterly abuses the magical “enhance image” ability that seems to only exist in movies and TV. The monitor he is using, however, is a CRT (cathode ray tube) monitor, which works by firing a beam of electrons from a region in the back of the monitor forward to the screen. In such a device, the electron is accelerated through a voltage of about...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT