Secondary revision · Physics - G12

The Phenomenon of Electromagnetic Induction

Question 1 of 10 Grade: Twelve - G12

Why is the core of a transformer laminated?

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Cryolite (Na₃AlF₆) is added to alumina (Al₂O₃) to lower its melting point from about 2072°C to around 950°C. This reduces the energy needed for electrolysis.

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