Q1/ A CRT has an effective length of 4 Cm and distance between the plates of 3 mm. The screen has 45 Cm away from the center of plates. The electron beam enters the plates at velocity of 25 10m/s. The deflection factor has 300 V/m. the intensity field is 3 KV/m. If the electron mass and charge are 9.1 10-31 Kg and 1.6 • 10-19 C. Determine- 1- The vertical deflection. (y). 2- The angular deflection. (o). 3- Find The coordinates of the point at which the election beam leaves the plates P (x, y). 4- Where should be the screen placed in order to obtain the deflection on the screen. (D-2cm). 5- What the time taken by the electron in its travel between entering the plates and reaching the screen.

Q1/ A CRT has an effective length of 4 Cm and distance between the plates of 3 mm. The screen has 45 Cm away from the center of plates. The electron beam enters the plates at velocity of 25 10m/s. The deflection factor has 300 V/m. the intensity field is 3 KV/m. If the electron mass and charge are 9.1 10-31 Kg and 1.6 • 10-19 C. Determine- 1- The vertical deflection. (y). 2- The angular deflection. (o). 3- Find The coordinates of the point at which the election beam leaves the plates P (x, y). 4- Where should be the screen placed in order to obtain the deflection on the screen. (D-2cm). 5- What the time taken by the electron in its travel between entering the plates and reaching the screen.