Electrons are accelerated from rest in an electron gun. They move through a potential difference of 15.0 kV. Determine the resulting kinetic energy of each electron.
11.0 kJ |
2.40 × 10-15 J |
1.45 × 10-23 J |
1.76 × 10-15 J |
Electrons are accelerated from rest in an electron gun. They move through a potential difference of...
An electron is accelerated from rest through a difference of potential V. a) Show that the de Broglie wavelength, in unit of angstrom Å (10-10 m), for a non- relativistic electron accelerated through a small potential difference is: λ =12.27/(v)^1/2 b) Calculate λ if the electron is accelerated through 50 V. c) Find the de Broglie wavelength for a relativistic electron that is accelerated from rest through a large difference potential difference at a modern particle collider. d) Show that...
An electron in a cathode ray tube is accelerated through a potential difference of 8.0 kV. What kinetic energy does the electron gain in the process? (e = 1.6 × 10−19 C) 1.3E–15 J 1.0E–21 J 1.0E–15 J 5.0E–16 J 1.3E–21 J
If an electron is accelerated from rest through a potential difference of 12.0 kV, what is its resulting speed? (e = 1.60 × 10-19 C, k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2, mel = 9.11 x 10-31 kg). (Give your answer to the nearest km/s).
An electron has been accelerated from rest through a potential difference of 700 V . What is the electron's kinetic energy, in electron volts? What is the electron's kinetic energy, in joules? What is the electron's speed?
Electrons (mass m, charge –e) are accelerated from rest through a potential difference V and are then deflected by a magnetic field B that is perpendicular to their velocity. The radius of the resulting electron trajectory is:
An electron is accelerated from rest through a potential difference that has a magnitude of 2.70 × 107 V. The mass of the electron is 9.11 × 10-31 kg, and the negative charge of the electron has a magnitude of 1.60 × 10-19 C. (a) What is the relativistic kinetic energy (in joules) of the electron? (b) What is the speed of the electron? Express your answer as a multiple of c, the speed of light in a vacuum.
An electron has been accelerated from rest through a potential difference of 700 V . A)What is the electron's kinetic energy, in electron volts? B)What is the electron's speed?
An electron and a proton are each accelerated starting from rest through a potential difference of 32.0 million volts. Find the momentum (in MeV/c) and the kinetic energy (in MeV) of each, and compare with the results of using the classical formulas. (Give your answers to at least four significant figures.) Proton Momentum (MeV/c) Momentum (MeV/c) relativistic classical proton ? 245.2
Item 11 An electron is accelerated from rest through a potential difference of 190 V. Part A What is the de Broglie wavelength of the electron?Item 12 An electron has de Broglie wavelength 2.81x10-10 m. Part A Determine the magnitude of the electron's momentum p.
An electron is accelerated through a potential difference V. In the process, the electron gains an amount of energy equal to 3.2 x 10-17 J. What is the value of the potential difference V?