Iron, cobalt and nickel are magnetic substances.
Hence, the given statement is true.
Answer the following questions.
(a) Classify the following substances as magnetic or non-magnetic.
copper, phosphorus, iron, cobalt, soil, water, silver mercury, nickel, wood, oil.
(b) In olden times, how as a magnet placed in a compass?
Which of the following is not a magnetic material?(a) gold(b) nickel(c) iron(d) cobalt
Iron, nickel and cobalt are……. substances.