All Questions
3
questions
3
votes
1
answer
335
views
Theory of Space Charge in a Planar Diode
A planar diode in a vacuum bulb can support current in only one direction. To even get current flowing, you have to heat up the cathode filament to excite the electrons. However, once current is ...
2
votes
1
answer
988
views
Confusion regarding Hall effect in semiconductors
In many places, it's mentioned that in hall effect, the holes move under the influence of magnetic field in the direction as shown in the figure. In this figure itself, the bound electrons move in the ...
0
votes
1
answer
266
views
Why do diodes block current in a single direction?
It seems like all the explanations for diode mechanics simply state that if N-type semiconductor is connected to V+ of the battery, the depletion region grows so current cannot pass.
It seems, ...