Question

in a normal iron piece (a) there are no magnetic dipoles (b) magnetic dipoles are arranged in a particular direction (c) magnetic dipoles are oriented (d) none of the above

Answer 1

Answer:

c) magnetic dipoles are oriented should correct answer 100%

Answer 2

Answer:

The correct answer is Option  C

Explanation:

• Iron is paramagnetic. In presence of an external electric field, the electrons (or magnetic dipoles) inside the metal get aligned in the same manner due to which their magnetic moments add up and produce a good magnetic strength. However, if the external field is removed the electrons come back to their original arrangement and there will be no longer any magnetic strength. This is the reason iron is called a temporary magnet and all paramagnetic materials exhibit the same property. But in the case of a ferromagnetic substance, the electrons remain in their aligned positions even after the external field is removed and hence they can produce a strong and permanent magnetic strength.