When an electron is displaced in a semiconductor, the hole that's left behind is
a. attracted to the negative terminal of the voltage source.
b. attracted to the anode of the voltage source.
c. considered an impurity in the crystal.
d. incapable of carrying a charge.

(d. is wrong)

odds are decent that your handwriting right now looks a little bit different than it did five years ago, and will look different again in five more. when i look back through my notebooks from middle school to now, i see a long, slow progression from meticulous and teeny letters to bigger, sloppier ones, plus a few side detours: sometime in high school, for example, i decided those loopy cursive lowercase f’s were just the coolest, adopting them as the lone rep for cursive in my otherwise all-print handwriting.

explanation: