1 point In a semiconductor it is observed that 0.7 of the current is carried by holes and 0.3 by electrons. If the drift speed of the electrons is two times that of the holes, what is the ratio of electrons over holes? O 5/11 O 3/14 O 14/9 O 6/13 O 9/15 O 11/6 I point Which statement about the quantum numbers which d

The difference between insulator and semiconductor is   a. wider gap between valence and conduction band b. the number of free electrons c. the atomic structure d. all of the above

C and D please

Consider four of semiconductor samples: solid A is orange, solid B is black, solid C is white, and solid D is yellow. Given their colors, rank these semiconductors in order of increasing band gap. A. B < A < D < c B. B < D < A < C C. C < D < A < B D. C < A < D < B