Does anyone have an equation for calculating the velocity of an electron from the anode of a crt to the cathode? Any help would be greatly appreciated.
Since you're given the potential difference the distance is irrelevant.
The gain in K.E. is $\displaystyle (35 \times 10^3) \cdot (1.602 \times 10^{-19})$ Joules.
And K.E. $\displaystyle = \frac{1}{2} m v^2 = \frac{1}{2} \cdot (9.1095 \times 10^{-31}) \cdot v^2$.
Equate these two and solve for $\displaystyle v$.
Maybe Im not looking at the problem in the correct way. In a TV crt the cathode emits electrons that raster across the screen. I'm trying to calculate the difference in velocity of an electron that hits on the left edge of the screen as compared with one that hits in the center.