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Question
Physics
A transformer with turns ratio (N1/N2)=(50/1) is connected to a 120 volt AC supply. If primary and secondary circuit resistance are 1.5 k Ω and 1 Ω respectively then find out power out put
Q. A transformer with turns ratio
N
2
N
1
=
1
50
is connected to a
120
volt AC supply. If primary and secondary circuit resistance are
1.5
k
Ω
and
1
Ω
respectively then find out power out put
2428
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AIIMS
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A
5.76 W
B
11.4 W
C
2.89 W
D
7.56 W
Solution:
V
1
V
2
=
N
1
N
2
120
V
2
=
50
1
V
2
=
5
12
Let transformer ideal
P
in
=
P
out
P
out
=
R
2
V
2
2
=
10
(
5
12
)
2
=
25
×
1
144
=
25
144
=
5.76
W