Question

If a bar magnet was cut initially into two pieces. Then each of the new pieces was cut into two more pieces, and the process was repeated one more time, find out the number of the north poles generated?

• A. 2
• B. 7
• C. 1
• D. 8

Answer 1

The correct option is D

8

First cut: 2 north and 2 south poles.

Second cut: Each of the two pieces were cut into two more pieces.

So, 4 north poles and 4 south poles.

Third cut: Each of the 4 pieces is cut into two more pieces.

So, 8 north and 8 south poles.