Which of these will generate electric current when kept in sunlight but not when kept in the dark?
Dry cell
Car battery
Button cell
Solar cell
How many terminal are there is a dry cell?
One
Two
Three
Four
Bulb glows only in
closed circuit
open circuit
in both circuits
open circuit if bulb is not fused
A bulb has
two terminals and a filament
two terminals and two filaments
multiple terminals and single filament
single terminal and a filament
Which of these is a set of good electrical insulators?
Graphite, wood, rubber
Rubber, glass. wood
Pure water, wood, silver
Copper, iron, silver
To prevent electric shocks, the metallic electrical wires are covered with
paper
cotton
aluminium
plastic
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
An example of a conductor is
tap water
salt solution
metal wire
all of these
Filament of s bulb is made up of
chromium
platinum
tungesten
The device that makes contact between two terminals is called
Filament
Circuit
Switch
Cell
