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In an ideal transformer, the turns ratio is (Nₚ)/(Nₛ)=1/2. The ratio Vₛ:Vₚ is equal to (the symbols carry their usual meaning):

Asked in NEET 2024 · Transformers

Answer: (2) 2:1

Step-by-step solution

In an ideal transformer the voltage per turn is the same on both windings, so

(Vₛ)/(Vₚ)=(Nₛ)/(Nₚ).

Here (Nₚ)/(Nₛ)=1/2, so (Nₛ)/(Nₚ)=2.

Hence Vₛ:Vₚ=2:1, and the transformer steps the voltage up.

Why the other options are wrong

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