City Guilds Model Questions Vol1 2021 Engineering Question 43
Practice objective / multiple choice question 43 from the 2021 City Guilds Model Questions Vol1 Engineering examination.
A step‑down transformer supplies a load that draws \(120\ \text{V}\) at \(2\ \text{A}\) from the secondary. The primary is connected to a \(240\ \text{V}\) source. The transformer incurs a core loss equal to 5 % of the input power and a copper loss equal to 2 % of the input power. Assuming a power factor of unity, determine the turns ratio \(N_{\text{primary}} : N_{\text{secondary}}\).
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About This Question
This is City Guilds Model Questions Vol1 2021 Engineering Question 43. It is one of the objective questions from the 2021 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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