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Standard XII
Physics
Transformer
What is the c...
Question
What is the coefficient of coupling for a transformer in which
4
% of the total flux generated in the primary does not pass through the secondary?
A
0.4
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B
4
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C
9.6
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D
0.96
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Solution
The correct option is
B
0.96
Coefficient of coupling
=
l
i
n
k
a
g
e
f
l
u
x
t
o
t
a
l
f
l
u
x
.
Actually linkage flux means flux of magnetic field arriving at secondary coil. And total flux means flux generated at primary end.
⟹
Coefficient of coupling
=
100
−
4
100
=
0.96
.
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