Name the effect of current responsible for the glow of the bulb in
an electric circuit.
Will the solution of sugar in distilled water conduct electricity?
Fill in the blanks
(a) The object to be electroplated is taken as ____________
electrode.
(b) One of the most common applications of chemical effect of
electric current is ______________.
(c) Small amount of a mineral salt present naturally in water
makes it a______________ of electricity.
(d) Electroplating of ______________ is done on objects like water
taps and cycle bell to give them a shiny appearance.
Which of the following metals is used in electroplating to make
objects appear shining?
(a) iron (c) chromium
(b) copper (d) aluminium
Which one of the following solutions will not conduct electricity?
(a) lemon juice (c) tap water
(b) vinegar (d) vegetable oil
When electric current is passed through a conducting solution,
there is a change of colour of the solution. This indicates
(a) the chemical effect of current.
(b) the heating effect of current.
(c) the magnetic effect of current.
(d) the lightning effect of current
Boojho’s uncle has set up an electroplating factory near his village.
He should dispose off the waste of the factory
(a) in the nearby river.
(b) in the nearby pond.
(c) in the nearby cornfield.
(d) according to the disposal guidelines of the local authority.
An electric current can produce
(a) heating effect only.
(b) chemical effect only.
(c) magnetic effect only.
(d) chemical, heating, and magnetic effects.
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