Q. When does current flow in a PN junction?
A. When both p-type and n-type elements are at same potential
B. When there is no potential at either p-type or n-type elements
C. When p-type element is at more positive potential than n-type
D. When n-type element is at more positive potential than n-type
Answer: When p-type element is at more positive potential than n-type
