Class VI

Which of the following is a natural magnet?
  1. Iron
  2. Magnetite
  3. Nickel
  4. Cobalt
In a bar magnet, magnetic power is
  1. More that both ends of the magnet
  2. More in the middle of the magnet.
  3. Is same through the magnet.
  4. None of these
Which of the following action will NOT make a magnet loose its magnetic properties?
  1. Drop a magnet from height
  2. Hammer a magnet
  3. Pass Electric current from a current
  4. Heat a magnet
When a North pole of a bar magnet is brought near the north pole of a freely suspended magnetic needle, then it _ each other . 
  1. Attracts 
  2. Repels 
  3. Neither attracts nor repels 
  4. None of these 
Boat moves to ward the magnet if north pole of the magnet is brought to its head 
  1. The south pole is fitted on the head of the boat 
  2. The north pole is fitted on the head of the boat 
  3. The boat is made of magnetic material 
  4. The boat is made of non-magnetic material 
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