Amateur Extra: N-Type Charge Carriers

Extra question of the day is from sub-element 6 (circuit components) section A (n-type semiconductors) [E6A16]

What are the majority charge carriers in N-type semiconductor material?

A. Holes
B. Free electrons
C. Free protons
D. Free neutrons

First, remember what the N-type designator means.  It indicates that the device uses Negatively charged carriers.   Protons and “holes” are positively charged carriers, and neutrons can’t carry any charge at all.

Electrons are the only negatively charged particles in the list of answers, so the correct choice is B. Free electrons.

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