A small rod is wound round with certain coils and current is allowed t – McqOptions

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1.	A small rod is wound round with certain coils and current is allowed to pass for some time. When the rod was taken out, it was found not to attract iron. The material of the rod may be
A.	Copper
B.	Cobalt
C.	Steel
D.	Nickel
Answer» B. Cobalt

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