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JEE Main Physics Class 12 Electronic Devices Part 1 Questions
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© examsnet.com
Question : 13
Total: 99
The output characteristics of a transistor is shown in the figure. When
V
C
E
is
10
V
and
I
C
=
4.0
m
A
,
then value of
β
ac
is _______.
[NA Sep. 06,2020 (II)]
Your Answer:
Validate
Solution:
At
V
C
E
=
10
V
and
I
C
=
4
m
A
Change in base current,
Δ
I
B
=
(
30
−
20
)
=
10
µ
A
Change in collector current,
Δ
I
C
=
(
4.5
−
3
)
=
1.5
m
A
β
=
(
Δ
I
C
Δ
I
B
)
=
1.5
m
A
10
µ
A
=
150
© examsnet.com
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