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Physics
Problem
In an ideal transformer, which of the following conditions must hold for it to act as a step-up transformer? a)
N
s
<
N
p
N_s < N_p
N
s
<
N
p
b)
N
s
=
N
p
2
N_s = \dfrac{N_p}{2}
N
s
=
2
N
p
c)
N
s
>
N
p
N_s > N_p
N
s
>
N
p
d)
N
s
=
N
p
N_s = N_p
N
s
=
N
p
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