Cell is a device which
  • converts chemical energy into electrical energy
  • electrical energy into light energy
  • electrical energy into magnetic energy
  • None of these
A bulb has
  • two terminals and one filament
  • two terminals and two filaments
  • multiple terminals and single filament
  • single terminal and single filament
Filament of a bulb is made up of
  • aluminium
  • chromium
  • platinum
  • tungsten
Bulb glows only in
  • closed circuit
  • open circuit
  • in both circuits
  • open circuit if bulb is not fused
A battery is
  • a single cell
  • a combination of cells in which cells are joined (+) to (-)
  • a combination of cells in which cells are joined (+) to (+)
  • None of these
A substance which allows electricity to pass through it is called
  • a conductor
  • an insulator
  • semiconductor
  • superconductor
Which is an example of an insulator
  • bakelite
  • aluminium
  • tap water
  • All of these
An example of a conductor is
  • tap water
  • salt solution
  • metal wire
  • all of these
How many terminals are there in a dry cell?
  • One
  • Two
  • Three
  • Four
To prevent electric shocks, the metallic electrical wires are covered with
  • paper
  • cotton
  • aluminium
  • plastic
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