ZuoTi.Pro
Question

A potential difference (p.d.) of 4800 V is applied between the cathode and anode of the tube. The cathode is heated and electAfter leaving the anode, the electrons follow a parabolic path as they pass between a pair of parallel plates with a p.d. of

A potential difference (p.d.) of 4800 V is applied between the cathode and anode of the tube. The cathode is heated and electrons are emitted from its surface. These electrons are then accelerated from rest and pass through a hole in the anode Cathode Anode Electrons 4800 V Show that the speed v of the electrons as they leave the anode is about 4 x 107 m s-1. V
After leaving the anode, the electrons follow a parabolic path as they pass between a pair of parallel plates with a p.d. of 800 V between them. There is a uniform electric field between the plates o 800 V Cathode Anode h V 5 cm electron beam 0 V 15 cm 4800 V
science   Advanced-Physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Here, quustion Speed the anode IS to find out the l eave they v of the electrons as kinehc energyganed by the electrons will

1 0
Add a comment
Know the answer?
Add Answer to:
A potential difference (p.d.) of 4800 V is applied between the cathode and anode of the tube. The cathode is heated and...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • 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...

  • 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...

  • As the electrons are accelerated through the second anode, the gain in kinetic energy is 2.0 x 10-15 J, and the speed of the electrons as they enter the region between the plates is 6.6 x 107 m/s. The...

    As the electrons are accelerated through the second anode, the gain in kinetic energy is 2.0 x 10-15 J, and the speed of the electrons as they enter the region between the plates is 6.6 x 107 m/s. The electrons are moving to the right as they pass between the plates. The plates are 2.0 cm long, 1.0 mm apart, and as the electrons pass between the plates, the potential difference is 450 V. Determine the time it takes to...

  • To create X-rays, a strong electric field is placed between an anode and a cathode. Electrons...

    To create X-rays, a strong electric field is placed between an anode and a cathode. Electrons are then disconnected from the cathode and accelerated toward the anode. When they enter the anode, X-rays are created. In this case, the cathode is placed in x = 0, and the anode in x-90 cm. The voltage between them is Uka-90 kV. You can assume that the electric field is homogeneous. Create a vector that contains 10 different values along the x-axis, x...

  • 1.An aluminum cathode has a work function Φ=4.1eV. A stopping voltage Vs=1.7 V is applied between...

    1.An aluminum cathode has a work function Φ=4.1eV. A stopping voltage Vs=1.7 V is applied between the anode and cathode. What is the maximum wavelength of the photon necessary to observe a current across the photoelectric tube? (8pts) [Answer in nm] 2.In an ion beam experiment, He+ ions are accelerated between two electrodes in a vacuum tube to generate a beam of high-energy ions. The ions reach kinetic energy Ek = 4·10-19 Joules and their mass is m=6.65·10-27 kg. What...

  • 3) In a vacuum diode electrons are emitted from a hot grounded cathode (V-0) and they...

    3) In a vacuum diode electrons are emitted from a hot grounded cathode (V-0) and they are accelerated towards the anode at potential Vo (see Griffiths, prob.2.48). The clouds of emitted electrons build up until they reduce the electric field at the cathode to zero. From then on a steady current I flows between the plates. Let the anode and cathode be much larger than the distance d between them, so that the potential φ, electron density ρ and electron...

  • Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical...

    Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical constants. From the set-up demonstrated in class, we are able to find a monumental combination of two physical constants-the charge of an electron (e) and the mass of an electron (m). Since the charge of an electron (e) is well known through other experiments, we will use the ratio of charge to mass to find the mass of an...

  • Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical...

    Finding the charge to mass (e/m) ratio of the electron Often in physics, we look for ways to find fundamental physical constants. From the set-up demonstrated in class, we are able to find a monumental combination of two physical constants-the charge of an electron (e) and the mass of an electron (m). Since the charge of an electron (e) is well known through other experiments, we will use the ratio of charge to mass to find the mass of an...

  • An investigation is performed using the apparatus shown below. Electrons are accelerated from rest from the...

    An investigation is performed using the apparatus shown below. Electrons are accelerated from rest from the cathode by an electric potential difference. The cathode and anode are 2.00% 102 cm apart. The electrons reach a speed of 2.10 x 10 m/s as they pass through the hole in the anode. Electron source and cathode Phosphorescent creen Anode Plate I-pdsitively chatged 19) → Electron -. p, plate ll-negatively charged Electric potential diffcrence Current-carrying coils that produce an rongnetic field Electrons then...

  • 2. An electron is accelerated from rest through a potential difference Δνι-800 V, and enters the...

    2. An electron is accelerated from rest through a potential difference Δνι-800 V, and enters the gap between two parallel plates having a separation d-20 mm and potential difference AVF 100 V. The lower plate is at higher potential than the upper. Assume that the electron's velocity is perpendicular to the electric field vector between the plates (i) (a) Calculate the speed of the electron after it travels through the potential difference of A,-800 V. (b) Draw the electric field...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT