Each of the electrons in the beam of a television tube (CRT) has a kinetic energyof 12.0 keV. The tube is oriented so that the electrons move horizontally from geomagneticsouth to geomagnetic north. The vertical component of the Earth's magnetic field pointsdown and has a magnitude of 55.0 µT.(a) In what direction will the beam deflect?(b) What is the acceleration of a single electron due to the magnetic field?(c) How far will the beam deflect in moving 20.0 cm through the television tube?

Given, the kinetic energy of the electron is, K.E=12keV12mv2=12×103eV×1.6×10-19J/eV The vertical…

Answered: b) Each of the electrons in the beam of…

Similar questions

See the attached figure for this problem. A charge of 9.26 x 10^6 C moves to the right as shown through a region containing both a magnetic field of strength 2.94 T directed into the screen and an electric field of strength 6.76 x 10^5 N/C directed downward. The charge continues through the region at a constant velocity (no acceleration). What is the charge s speed?
An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.280 T. If the kinetic energy of the electron is 2.60 x 10-19 J, find the speed of the electron and the radius of the circular path. (a) the speed of the electron X Your response differs from the correct answer by more than 10%. Double check your calculations. m/s (b) the radius of the circular path X Your response differs from the correct answer by more than 10%. Double check your calculations. μm
Kieran measures the magnetic field of an electron beam. The beam strength is such that 2.30 × 1011 electrons pass a point every 1.30 μs. What magnetic field does Kieran measure at a distance of 2.00 cm from the beam center? Answer in units of T.
A charged particle moves into a region of uniform magnetic field, goes through half a circle, and then exits that region. The particle is either a proton or an electron (you must decide which). It spends 130 ns in the region. What is the magnitude of B? Give your answer in T. (mproton=1.672x1027 kg, melectron-9.1lx10-3! kg, e-1.602x10-19 C) OB
In a mass spectrometer, the mass of a particle is determined by it's circular path in a magnetic field of value B= 1T. Here, we consider a particle of charge q=te = 1.6 x 10"C that is accelerated across a potential difference AV :- 500 Volts. As shown, this particle enters a chamber with a uniform magnetic field. The particle makes a circular path and strikes the detector a distance I=8 Cm from where it entered the chamber. Part A Determine the mass of the particle. Vo AEO m 3= kg
A 65.0-cm-diameter cyclotron uses a 470 V oscillating potential difference between the dees. F2 سولو 3 E in 1 8.0 C F3 $ 4 OF D R a F4 V % 5 T G & F5 A 6 B Y Part A What is the maximum kinetic energy of a proton if the magnetic field strength is 0.660 T? Express your answer with the appropriate units. Y Fó μÅ 3.313-10-13 J Submit Part B. H X Incorrect; Try Again; 4 attempts remaining How many revolutions does the proton make before leaving the cyclotron? Provide Feedback Previous Answers Request Answer IVE ΑΣΦ 5 → C ZANG ? 2202.79 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining & 7 N ← F7 U J BANNA ? * CO 8 DII FO M | ( 9 K DD F9 O < E 22 ) O L A F10 command P di F11 ; T { + [ option (1) = F12 Nex } 1 11
Write down an expression for the force experienced by an electron moving with a velocity, v, in a magnetic field B. By equating this expression to the force required to cause electrons to follow a circular path of radius, r, derive an expression for the ratio, (?⁄?) for an electron in terms of the magnetic field strength, the radius of the circular path and the accelerating potential, V.
Starting from rest, an electron is accelerated through a region between two oppositely charged plates, as shown in Figure 1. The distance between the plates is 10 cm and the magnitude of the potential difference between them is 100 V. Immediately after exiting the region with the uniform electric field, the electron enters a region with a uniform magnetic field of 0.85 T, directed into the page. (a) Calculate the magnitude of the electric force on the electron. (b) Calculate the work done by the electric force on the electron. (c) Determine the electron's speed when it enters the magnetic field. (d) Determine the magnitude and direction of the magnetic force on the electron when it enters the magnetic field. (e) Suppose that the experiment was repeated with the locations of the positive and negative plates switched, and the electron was replaced with a proton, but nothing else was changed. Calculate R,/R., the ratio of the radius of the proton's path in the magnetic field (R,) to that…
A 13-cm length of wire is held along an east-west direction and moved horizontally to the north with a speed of 2.2 m/s in a region where the magnetic field of the earth is 55 micro-T directed 28° below the horizontal. What is the magnitude of the potential difference between the ends of the wire? Write your answer in micro-volts.
An electron moves at a speed of 810 m/s perpendicular to the direction of a uniform magnetic field of 0.4 T. What is the radius of the electron's circular orbit in units of nanometers (1 m = 10° nm)? (in units of nanometers)
An electron with a speed of 2.5 x 106 m/s moves with a circle in a plane perpendicular to a uniform magnetic field. If the radius of the circle is 2.3 cm, then what is the magnitude of the field?