High School Physics


The semiconductor Diode – Revision notes

A diode is one of the simplest semiconductor devices, which has the characteristic of passing current in one direction only. However, unlike a resistor, a diode does not behave linearly with respect to the applied voltage as the diode has an exponential I-V relationship and therefore we can not describe its operation by simply using […]

Semiconductors, doping, N-type and P-type, motion of electron & hole

In a semiconductor, electrons flow, but not as well as they do in a conductor. Some semiconductors carry electrons almost as well as good electrical conductors like copper or aluminum; others are almost as bad as insulating materials. Semiconductors are not exactly the same as resistors. In a semiconductor, the material is treated so that […]

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