PhysicsElectromagnetic inductionWAEC
A transformer has 200 turns in its primary and 1000 turns in its secondary. If 12 V a.c. is applied, find the output voltage.
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Answer: A. 60 V
Vs/Vp = Ns/Np, so Vs = 12 × 1000/200 = 60 V.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.