I It retains its magnetic much longer than steel.II It is more easily magnetized...
Question
I It retains its magnetic much longer than steel.
II It is more easily magnetized than steel
III It is more easily demagnetized than steel
IV It produces a stronger magnet than steel
Which combination of the above makes iron preferable to steel in the making of electromagnets?
Options
A) I and II only
B) II and III only
C) I, III, and IV only
D) II, III and IV only
Related Lesson: Floating and Sinking | Fluid Statics
The correct answer is B.
Explanation:
Iron (spft iron) is usually preferred to steel in the making of electromagnets because it is more easily magnetized and equally more easily demagnetized than [II and III]
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Iron (spft iron) is usually preferred to steel in the making of electromagnets because it is more easily magnetized and equally more easily demagnetized than [II and III]