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Byju's Answer
Standard XII
Chemistry
EMF
A common emit...
Question
A common emitter amplifier has a voltage gain of
50
and current gain is
25.
The power gain of the amplifier is
125
x
.
The value of
x
is
(integer only)
Open in App
Solution
Given,
voltage gain
A
V
=
50
;
current gain
β
=
25
∵
AC power gain
=
Δ
V
c
Δ
i
c
Δ
V
b
Δ
i
b
=
(
Δ
V
c
Δ
V
i
)
×
(
Δ
i
c
Δ
i
b
)
=
A
v
×
β
A
C
=
50
×
25
=
1250
∴
x
=
10
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