I It retains its magnetic much longer than steel. II It is more easily magnetized…

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?
  • A.
    I and II only
  • B.
    II and III only
  • C.
    I, III, and IV only
  • D.
    II, III and IV only
Correct Answer: Option 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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In the diagram, MQ//RS, o and o. Find the value of x A. 150o B. 110o C. 100o…
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