Transistors – 1 – 3

11. If a transistor emitter current is 2 mA, the collector current is :

(a) Greater than 2 mA
(b) Less than 2 mA
(c) Equal to 2 mA
(d) Equal to 4 mA

ANSWER

EXPLANATION

12. The α of the transistor is :

(a) A measure of its sensitivity
(b) A measure of quality
(c) A measure of thermal stability
(d) A measure of its noise immunity

ANSWER

EXPLANATION

13. Normal biasing of transistor is :

(a) Forward bias the Emitter-Base and reverse bias the Collector-Base
(b) Forward bias both the Emitter-Base and Collector-Base
(c) Reverse bias both the Emitter-Base and Collector-Base
(d) Reverse bias both Emitter-Base and forward bias the Collector-Base

ANSWER

EXPLANATION

14. With reference to the current amplification factor of transistor :

(a) α is greater than β
(b) α is smaller than β
(c) α and β are equal
(d) None of the above

ANSWER

EXPLANATION

15. When a transistor is connected in common collector mode, then

(a) Input is in between Base and Emitter
(b) Input is in between Base and Collector
(c) Input is in between Emitter and Collector
(d) Input is in between Collector short-circuited

ANSWER

EXPLANATION

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