Which two elements are used in precious instruments?(a) Copper, Silver(b) Gold, Silver(c) Copper, Aluminum(d) Gold, AluminumI have been asked this question in a job interview.This question is from High Conductivity Materials topic in division Electrical Engineering Materials of Design of Electrical Machines

Which two elements are used in precious instruments?(a) Copper, Silver

1.	Which two elements are used in precious instruments?(a) Copper, Silver(b) Gold, Silver(c) Copper, Aluminum(d) Gold, AluminumI have been asked this question in a job interview.This question is from High Conductivity Materials topic in division Electrical Engineering Materials of Design of Electrical Machines
Answer» The correct option is (b) Gold, SILVER The EXPLANATION: Silver is used only in precious instruments because of its high cost. Gold, on the other hand, is not only costly but also not SUITABLE for many practical applications and can LOSE its properties easily.

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