Question

Which of the following would be true for an arrangement to store a U-shaped or horseshoe magnet?

• A. Placing a piece of wood between the arms of U-shaped magnet.
• B. Keeping the magnet dipped in cooking oil.
• C. Placing an iron piece across the poles of the U-shaped magnet.
• D. Placing another magnet with the opposite poles between the arms of U-shaped magnet.

Answer 1

The correct option is C Placing an iron piece across the poles of the U-shaped magnet.

Magnets become weak if they are not stored properly.
For horseshoe or U-shaped magnet, an iron piece should be kept across the poles. As shown in the figure: