- #1
venomxx
- 39
- 0
Hi there,
Im having a problem with the results I am getting for an experiment I am doing in relation to the photoelectric effect. My graph is very similar to that in the attachment, except for the fact that the line at A and again after the drop is sloping at a very steep angle to begin with.
To me this means that the current is varying with the portential before the saturation voltage is reached...does this make any sense? Should i be grounding something other then the obvious maby?
My setup is a zinc cathode within a copper tube under vacume. I am directing uv light from a mercury vaper lamp through a quartz window at the cathode.
Any thoughts would be some help, I am getting the correct work functions but I am curious to know why its different?
Cheers
Im having a problem with the results I am getting for an experiment I am doing in relation to the photoelectric effect. My graph is very similar to that in the attachment, except for the fact that the line at A and again after the drop is sloping at a very steep angle to begin with.
To me this means that the current is varying with the portential before the saturation voltage is reached...does this make any sense? Should i be grounding something other then the obvious maby?
My setup is a zinc cathode within a copper tube under vacume. I am directing uv light from a mercury vaper lamp through a quartz window at the cathode.
Any thoughts would be some help, I am getting the correct work functions but I am curious to know why its different?
Cheers