Transistors
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365452 For transistor action, which of the following statements is correct

1 Base, emitter and collector regions should have same size.
2 Both emitter junction as well as the collector junction are forward biased.
3 The base region must be very thin and lightly doped.
4 Base, emitter and collector regions should have same doping concentrations
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365453 In a junction transistor the emitter, base and collector are made of

1 Extrinsic semiconductors
2 Intrinsic semiconductors
3 Both 1 and 2
4 Metal
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365454 In a transistor

1 Both emitter and the collector are equally doped
2 Base is more heavily doped than collector
3 Collector is more heavily doped than the emitter
4 The base is made very thin and is lightly doped
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365455 Match the following
Column I
Column II
A
Moderate size and heavily doped
P
Base
B
Very thin and lightly doped
Q
Collector
C
Moderately doped and of large size
R
Emitter
D
Doped with penta valent impurity
S
\(N\)-type semi - conductor

1 A - Q, B - P, C - S, D - R
2 A - P, B - Q, C - S, D - R
3 A - R, B - P, C - Q, D - S
4 A - Q, B - P, C - R, D - S
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365452 For transistor action, which of the following statements is correct

1 Base, emitter and collector regions should have same size.
2 Both emitter junction as well as the collector junction are forward biased.
3 The base region must be very thin and lightly doped.
4 Base, emitter and collector regions should have same doping concentrations
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365453 In a junction transistor the emitter, base and collector are made of

1 Extrinsic semiconductors
2 Intrinsic semiconductors
3 Both 1 and 2
4 Metal
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365454 In a transistor

1 Both emitter and the collector are equally doped
2 Base is more heavily doped than collector
3 Collector is more heavily doped than the emitter
4 The base is made very thin and is lightly doped
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365455 Match the following
Column I
Column II
A
Moderate size and heavily doped
P
Base
B
Very thin and lightly doped
Q
Collector
C
Moderately doped and of large size
R
Emitter
D
Doped with penta valent impurity
S
\(N\)-type semi - conductor

1 A - Q, B - P, C - S, D - R
2 A - P, B - Q, C - S, D - R
3 A - R, B - P, C - Q, D - S
4 A - Q, B - P, C - R, D - S
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365452 For transistor action, which of the following statements is correct

1 Base, emitter and collector regions should have same size.
2 Both emitter junction as well as the collector junction are forward biased.
3 The base region must be very thin and lightly doped.
4 Base, emitter and collector regions should have same doping concentrations
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365453 In a junction transistor the emitter, base and collector are made of

1 Extrinsic semiconductors
2 Intrinsic semiconductors
3 Both 1 and 2
4 Metal
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365454 In a transistor

1 Both emitter and the collector are equally doped
2 Base is more heavily doped than collector
3 Collector is more heavily doped than the emitter
4 The base is made very thin and is lightly doped
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365455 Match the following
Column I
Column II
A
Moderate size and heavily doped
P
Base
B
Very thin and lightly doped
Q
Collector
C
Moderately doped and of large size
R
Emitter
D
Doped with penta valent impurity
S
\(N\)-type semi - conductor

1 A - Q, B - P, C - S, D - R
2 A - P, B - Q, C - S, D - R
3 A - R, B - P, C - Q, D - S
4 A - Q, B - P, C - R, D - S
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365452 For transistor action, which of the following statements is correct

1 Base, emitter and collector regions should have same size.
2 Both emitter junction as well as the collector junction are forward biased.
3 The base region must be very thin and lightly doped.
4 Base, emitter and collector regions should have same doping concentrations
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365453 In a junction transistor the emitter, base and collector are made of

1 Extrinsic semiconductors
2 Intrinsic semiconductors
3 Both 1 and 2
4 Metal
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365454 In a transistor

1 Both emitter and the collector are equally doped
2 Base is more heavily doped than collector
3 Collector is more heavily doped than the emitter
4 The base is made very thin and is lightly doped
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365455 Match the following
Column I
Column II
A
Moderate size and heavily doped
P
Base
B
Very thin and lightly doped
Q
Collector
C
Moderately doped and of large size
R
Emitter
D
Doped with penta valent impurity
S
\(N\)-type semi - conductor

1 A - Q, B - P, C - S, D - R
2 A - P, B - Q, C - S, D - R
3 A - R, B - P, C - Q, D - S
4 A - Q, B - P, C - R, D - S