Which of the following senate passed the First Step Act?
A. Germany
B. US
C. UK
D. Russia
Month: December 2018
Who was reinstated as Prime Minister of Srilanka?
Who was reinstated as Prime Minister of Srilanka?
A. Maithripala Sirisena
B. Ranil Wickremesinghe
C. Mahinda Rajapaksa
D. Karu jayasuria
The minority carrier concentration is largely a function of_____________?
The minority carrier concentration is largely a function of_____________?
A. forward biasing voltage
B. reverse biasing voltage
C. temperature
D. the amount of dog
The current due to electron flow in conduction band is the hole current in valence band?
The current due to electron flow in conduction band is the hole current in valence band?
A. equal to
B. less than
C. greater than
D. any of the above
For germanium the forbidden energy gap is_______________?
For germanium the forbidden energy gap is_______________?
A. 0.15 eV
B. 0.25 eV
C. 0.5eV
D. 0.7eV
is an element used in semiconductors whose atoms have three valence electrons?
is an element used in semiconductors whose atoms have three valence electrons?
A. An acceptor
B. A donor
C. Germanium
D. Silicon
The carbon percentage is least in__________________?
The carbon percentage is least in__________________?
A. low carbon steel
B. wrought iron
C. cast iron
D. malleable iron
The conductivity of an extrinsic semiconductor with temperature________________?
The conductivity of an extrinsic semiconductor with temperature________________?
A. decreases
B. increases
C. remains constant
For a hole which of the following statements is incorrect ?
For a hole which of the following statements is incorrect ?
A. Holes can exist in certain semiconductors only
B. Holes can exist in any material including conductors
C. Holes may constitute an electric current
D. Holes can be considered as a net positive charge
For a particular material the Hall coefficient was found to be zero. The material is______________?
For a particular material the Hall coefficient was found to be zero. The material is______________?
A. insulator
B. metal
C. intrinsic semiconductor
D. none of the above