City Guilds Model Questions Vol1 2017 Engineering Question 43
Practice objective / multiple choice question 43 from the 2017 City Guilds Model Questions Vol1 Engineering examination.
A single‑phase transformer is rated to deliver 230\,V on its secondary. It supplies a 500\,W load that operates at 0.8 lagging power factor. The transformer efficiency at this load is 92\%. The primary winding resistance is 0.5\,\Omega and the secondary winding resistance is 0.2\,\Omega. Assuming ideal magnetic coupling, calculate the turns ratio (primary : secondary) of the transformer, expressed to two decimal places.
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About This Question
This is City Guilds Model Questions Vol1 2017 Engineering Question 43. It is one of the objective questions from the 2017 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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