How is the junction barrier between n-type and p-type silicon ...

[ereecah]

How is the junction barrier between n-type and p-type silicon much like a one-way valve?
 
  A) The electrons can only be lost from the p-type silicon wafer.
  B) The orientation of the charge around the barrier allows the electrons to flow in only one direction.
  C) The electrons can only be lost from the n-type silicon wafer.
  D) Only one side of the barrier is exposed to light, which causes the electrons to flow in the opposite direction.

Question 2

Density is an extensive property of matter the more of a given substance you have, the more dense it becomes.
 
  Indicate whether the statement is true or false

[peilian]

Answer to Question 1

B

Answer to Question 2

FALSE