In an ideal transformer, the turns ratio is N_p/N_s=1/2. The ratio V_s : V_p is equal to (the symbols carry their usual meaning) :

1. 1 : 4

2. 1 : 2

3. 2 : 1

4. 1 : 1

Doubtly Asked 30 Oct 2026 NEET UG 2024 Practice test neet Save WhatsApp Report

1 answer

Best answer

Answer: 3. 2 : 1

Key idea: For an ideal transformer \(\frac{V_s}{V_p}=\frac{N_s}{N_p}\).

Given \(\frac{N_p}{N_s}=\frac12\), we get \(\frac{N_s}{N_p}=2\), so \(V_s:V_p=2:1\). It is a step-up transformer.

Option 3.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

Was this answer helpful?