Deflection of the electron beam in a tube TV set is accomplished by magnetic for

Question

Deflection of the electron beam in a tube TV set is accomplished by magnetic forces. The electrons are accelerated until they have kinetic energy 25 keV (a kilo-electron-volt (1 keV) is the energy needed to accelerate a single electron, with charge -e, across a potential difference of -1 kiloVolts). What magnetic field is required to produce a deflection of 3.3 cm if the magnetic field region is 8.0 cm long? If there is a 22 cm gap between the end of the magnetic field region and the end of the tube, how far from the center of the screen does the beam strike?

Explanation / Answer

If there is a x2=0.1m gap between the end of the magnetic field region and the end of the tube, how far from the center of the screen does the beam strike?

ynet = y1 + y2 =


2. Relevant equations
R = mv/qB

R = (m/eB)*?(2eVacc/m)

field magnitude = 4.699

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.