Ram wants to make a magnet. Which of the following materials he cannot make use of?
Steel
Nickel
Cobalt
Ebonite
Magnets can be formed using magnetic material only, and wood is not a magnetic material.
Ram wants to make a magnet. Which one of these materials can he not use ?
Ram wants to make a magnet. Which one of these materials are NOT useful to him?
Hayden constructs a magnetic maze. He uses a magnet to move the peg around the maze. Which of the following materials can Hayden use to make the peg for the magnetic maze?