Which direction do the photo-ejected electrons in a photovoltaic cell travel?
A) from the n-type, through a wire, to the p-type, and then back across the junction to the n-type silicon
B) from the p-type, through a wire, to the n-type, and then back across the junction to the p-type silicon
C) from the n-type, across the junction, into the p-type silicon
D) from the p-type, across the junction, into the n-type silicon
E) none of the above
Question 2
Which of the following statements describes what happens when you press a n-type silicon wafer against a p-type silicon wafer?
A) The n-type wafer becomes slightly positive, while the p-type becomes slightly negative.
B) The p-type wafer becomes slightly positive, while the n-type becomes slightly negative.
C) There is no change.
D) They both become slightly negative.
E) They both become slightly positive.
Examples of cell types derived from ectoderm, mesoderm, and endoderm.
cell structure
Each experimental organism used in cell biology has advantages for certain types
biology 30 - Cell Division