[List of Quiz Problems]

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One of the two iron nails is magnetic, the other isn't. Find out !

(1)

If there is a force, only no. (1)
can be magnetic.

(2)

If there is no force, only no. (2)
can be magnetic.

(1)

If there is a force in the center, only no. (1)
can be magnetic.

(2)

If there is no force in the center, only no. (2)
can be magnetic.

 


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[List of my Quiz Problems]
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