A beam of electrons is accelerated through a potential difference of 11kV before entering a velocity selector. If the B-field of the velocity selector is perpendicular to the velocity and has a value of 0.05 T, what value of the E-field is required (in the magnetic field region) if the particles...
Hey, I am having trouble with this almost identical question. What do you do after you find the total current?
You have to find the current that is traveling through the 8ohm resistor afterward right? How would I do that.
Then to get power it would just be the current traveling through the...