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What are the advantages and disadvantages of electroplating?
What is electroplating? On which effect of the electric current is it based? Why is it done?
In some situation even, liquid is allowing the electric current to pass but, bulb does not glow. Why so?
Explain the functioning of a LED.
How can we check whether a tester is working or not?
Why the filament of bulb does not get heated sometimes in a circuit?
What do you mean by chemical effect of current?
What do you mean by magnetic effect of current?
Why materials classified as poor conductors, also allow electricity to pass under certain conditions?
Differentiate between good conductors and bad conductors of electricity.
Describe an electrical tester.
What do you mean by heating effect of current?
How can you test whether lemon juice is good conductor or poor conductor of electricity?
On what factors thickness of the electroplated items depend?
Is it possible for an electric tester to detect weak current also, if no how can we detect weak current flowing in a circuit?
What are the two types of electricity on the basis of charge?
Does water conduct electricity? Show with the help of an activity.
OR
Show the conductivity of water with the help of an activity.