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Standard XII
Physics
Transformer
The transform...
Question
The transformation ratio in the step-up transformer is -
A
1
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B
Greater than one
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C
Less than one
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D
The ratio greater or less than one depends on the other factors
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Solution
The correct option is
B
Greater than one
Transformation ratio,
k
=
N
S
N
P
=
V
S
V
P
For step-up transformer,
N
S
>
N
P
, i.e.,
V
S
>
V
P
, hence
k
>
1
.
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