Recent content by Opo

So how should I adjust my answer ? I went from 70cm to 35cm (if that's what you meant?) which changed the angle from 30.3ο to 16.3ο but the answer is still wrong.

Homework Statement Question: A cathode ray tube in a TV has an electron gun operating at 10 kV. a: What is the velocity (in m.s-1) at which the electrons are emitted? Answer:5.9x107 b: How many volts are needed between the deflector plates to move the beam impact spot across a 70 cm screen if...