Q233
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio
A.
50 : 20 : 20 : 10
AnswerB.
40 : 30 : 20 : 10
C.
50 : 20 : 10 : 20
D.
30 : 20 : 30 : 20
Answer: Option A
Solution
Answer: Option A
Solution:
The composition of alnico alloys is typically 50% of Iron, 20% of nickel,20% of aluminium and 10% of cobalt