Basic Physics II Evidences - DrJJ - UiTM
Basic Physics II Evidences - DrJJ - UiTM
Basic Physics II Evidences - DrJJ - UiTM
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CONFIDENTIAL7AS/APR 2008/PHY407ii)A transformer operates based on Faraday’s Law. The emf or V p on the primary coilNpp pcan be written as; V p Np.ttNss sThe induced emf in the secondary coil is; Vs Ns. But the fluxttchange in one second in the primary and the secondary coil is the same; s p . Hence if we take the ratios of the secondary coil emf to the primarytt s NVssN scoil emf; tVsN . So, sV pp N p V p N p N pt(5+9=14 marks)© Hak Cipta Universiti Teknologi MARA CONFIDENTIAL
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