Filament of s bulb is made up of
aluminium
chromium
platinum
tungesten
An example of a conductor is
tap water
salt solution
metal wire
all of these
Which of these are used to produce an electric current?
Running water
Steam
Wind
All of these
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 the above
A substance which allows electricity to pass through it is called
a conductor
an insulator
semiconductor
superconductor
How many terminal are there is a dry cell?
One
Two
Three
Four
The device that makes contact between two terminals is called
Filament
Circuit
Switch
Cell
Bulb glows only in
closed circuit
open circuit
in both circuits
open circuit if bulb is not fused
To prevent electric shocks, the metallic electrical wires are covered with
paper
cotton
plastic
A bulb has
two terminals and a filament
two terminals and two filaments
multiple terminals and single filament
single terminal and a filament
