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If a transformer has a primary voltage of 120 V (rms) and a secondary voltage of 25 V (rms), with a secondary current of 1 A (rms), what is the value of the primary current?

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If a transformer has a primary voltage of 120 V (rms) and a secondary voltage of 25 V (rms), with a secondary current of 1 A (rms), what is the value of the primary current? Answer: 208 mA

Question context

This question is part of 💻 Computing within the broader 💾 Computer Science subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.