alleryAlnico is an alloy of iron, aluminium, nickel, cobalt and:
ACarbon
BCopper
CSilver
DSodium
Answer & Solution
Correct answer: B. Copper
1. Alnico is a hard magnetic material used for permanent magnets.
2. Its name comes from aluminium, nickel and cobalt.
3. The alloy also carries iron and copper.
_Source: syllabus Physics Part I, Chapter 5, Magnetism and Matter._
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