WorksheetsDirect and indirect band gap semiconductor
Total questions: 10
Worksheet time: 5mins
How does a semiconductor behave at
absolute zero?
Conductor
Insulator
Semiconductor
Protection device
Semiconductor acts as an insulator in the
presence of impurities.
True
False
How is the resistance of semiconductor
classified?
High resistance
Positive temperature co-efficient
Negative temperature co-efficient
Low resistance
What are the charge carriers in
semiconductors?
Electrons and holes
Electrons
Holes
Charges
Which of the following is known as
indirect band gap semiconductors?
Germanium
Nickel
Platinum
Carbon
Which column elements are combined to
make compound semiconductors?
First and fourth
Fifth and sixth
Second and fourth
Third and fifth
Compound semiconductors are also known
as direct band gap semiconductors.
True
False
How are charge carriers produced in
intrinsic semiconductors?
By pure atoms
By electrons
By impure atoms
By holes
What type of material is obtained when an
intrinsic semiconductor is doped with
pentavalent impurity?
N-type semiconductor
Extrinsic semiconductor
P-type semiconductor
Insulator
What type of material is obtained when an
intrinsic semiconductor is doped with
trivalent impurity?
Extrinsic semiconductor
Insulator
N-type semiconductor
P-type semiconductor
