Task id17039

In the device shown in Fig. 28.7 a, a beam of electrons is deflected upward by a transverse magnetic field. The field operates effectively at a length of l=20 mm, the distance from the deflection system to the screen is L=175 mm. Magnetic field induction 10-3 T, anode voltage 500 V. Determine how much the electron beam on the screen will deviate.