JAMB Mathematics 2022 Objective — Question 3
Question 3 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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The element common to Alnico, steel and Permalloy is
- A. Aluminium
- B. Nickel
- C. IronCorrect
- D. Cobalt
Explanation
Alnico = Al + Ni + Co + Fe. Permalloy = Fe + Ni. Steel = Fe + C. Iron (Fe) is the element common to all three alloys.
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