Related Questions

A pentavalent impurity has ___________ Valence electrons
A 3
B 5
C 4
D 6
A trivalent impurity has valence electrons
A 4
B 5
C 6
D 3
Which of the following elements has three valence electrons?
A Al
B Ag
C Au
D Ca
How may valence electrons does a silicon atom have?
A 0
B 1
C 2
D 4
E None of the above
In a metal, the valence electrons
A Are not shared
B Are shared only between neighbouring atoms
C Are shared by all atoms
D Either B or C
Is an element used in semiconductors whose atoms have three valence electrons.
A An acceptor
B A donor
C Germanium
D Silicon
As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor ___________
A Remains the same
B Increases
C Decreases
D None of the above
The impurity level in an extrinsic semiconductor is about of pure semiconductor.
A 10 atoms for 108 atoms
B 1 atom for 108 atoms
C 1 atom for 104 atoms
D 1 atom for 100 atoms
নিম্নের কোনটি p-টাইপ অর্ধপরিবাহীতে n-টাইপ অর্ধপরিবাহীর তুলনায় বেশি আছে? (Which of the following does a p-type semiconductor have more compared to an n-type semiconductor-)  
A মোট ধনাত্মক আধান (total positive charge)
B মোট আধান (total charge)
C ইলেকট্রন ঘনত্ব (density of electrons)
D হোল ঘনত্ব (density of holes)
How many free electrons does a p type semiconductor has?
A Only those produced by thermal energy
B Only those produced by doping
C Those produced by doping as well as thermal energy
D Any of the above

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