다음 중 전기로에 사용되는 발열체가 갖추어야 할 조건으로 틀린

다음 중 전기로에 사용되는 발열체가 갖추어야 할 조건으로 틀린 것은？
① 전기 저항이 커야 한다
② 용융점이 낮아야 한다.
③ 고온 강도가 커야 한다.
④ 고온에서 산화 저항성이 커야 한다

Results (English) 1:

Which of the following are used in electrically heating body must as a condition of the wrong one?① greater electrical resistance. ② yongyungjeomi should be low. ③ high temperature strength should be greater. The oxidation resistance at high temperature should be greater ④

Results (English) 2:

It is wrong to be equipped with heating conditions used in the furnace of the following?
① The electrical resistance greater
② must be low melting point.
③ must be at least the high-temperature strength.
④ must be greater oxidation resistance at elevated temperatures

Results (English) 3:

then the electric heating body is used in all conditions must be right.① resistance is relatively large.② melting point is lower.the temperature of the ③.④ high temperature oxidation resistance is relatively large.