Say True or False:
  1. A battery in a circuit consists of one cell only
  2. The heat produced in a conductor by an electric current does not depend on the material of the wire
  3. The greater the current in the wire, the more heated up it will get
  4. A fuse wire is made up of metal that does not melt easily
  5. The electric bulb is based on the magnetic effect of electric current

1. False: Battery is a combination of two or more cells.
2. False: Heat flow depends on the thermal conductivity of the material of the wire.
3. True
4. False: Fuse wire is made up of material with low melting point so that it melts easily as high current passes through it.
5. False: Electric bulb is based on heating effects if elecric current.

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