EDC

EDC
Question:-
Option (A)
3.47 x 1017 electrons/cm3
Option (B)
1.8 x 109 electrons/cm3
Option (C)
4.67 x 105 electrons/cm3
Option (D)
4.81 x 107 electrons/cm3
Correct Option:
D
Question Solution:
Conductivity (σ) = q(μpppnnp)
For heavily doped p-type semiconductor
pp>> np
Question:-
Option (A)
2.4 x 105 m/s
Option (B)
4.45 x 10-5 m/s
Option (C)
1.78 x 10-4 m/s
Option (D)
2.225 x 10-3 m/s
Correct Option:
C
Question Solution:
Cross-section of the wire, A=πd,2/4
Currentdensity J=l/A = 4l/πd2 = 2.4 x 106 V/m2
And J=nqvd
Question:-
Option (A)
Option (B)
Option (C)
Option (D)
Correct Option:
B
Question:-
Option (A)
2V
Option (B)
2.06V
Option (C)
2.14V
Option (D)
2.2V
Correct Option:
A
Question:-
Option (A)
Barrier should be less then 100 A
Option (B)
Occupied energy state (EG) of both the side (p and n ) should be equal
Option (C)
Occupied energy state (EG) of p-side should be greater than atat of n-side
Option (D)
Both (a) and (b)
Correct Option:
D
Question:-
Option (A)
Fixed bias
Option (B)
Emitter bias
Option (C)
Self bias
Option (D)
Collector-emitter bias
Correct Option:
A