In A Solar Cell
a: Electric field ~
b: a magnetic field
What: "These paired particles create an electric field in the junction; the electric field is like a magnetic field where you have oppositely charged particles moving towards each other. When photons (light particles) from the sum hit the cell, the energy breaks up the paired particles. The freed electrons go into the n-type layer, while the holes go down into the p-type layer. Some electrons get knocked out hard enough and escape through the top layer into the metal conductor strips, this movement creates direct current which then moves through the wires into the inverter that transforms it into alternating current. "
Useful?
Writer: Janice Hung
LCC:
Where:
Date: Aug 1 2013 3:26 PM
# 3536 Critique Analogy