Class VIII

Force which a magnet exerts is called
  1. magnetic force
  2. magnetic field
  3. magnetic circle
  4. magnetic energy
Pole which points towards north is called
  1. N-pole
  2. S-pole
  3. W-pole
  4. E-pole
Magnetic materials include
  1. steel
  2. iron
  3. nickel
  4. all of them
Examples of magnets includes
  1. Magnalock
  2. door-stopper
  3. fridge door
  4. all of them
A substance consisting of a coil of wire with an iron core and is only magnetized when an electric current flows through it is called
  1. magnet
  2. electromagnet
  3. battery
  4. coil
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