What are metals? And what are the electric effects of current? We all are aware that metal is a good conductor of electricity. At the same time, plastics are not the conductors of electricity. There are also many liquid conductors which become a source of electricity.
Electric current
The path consists of passing or taking current.
And the current flows in it even when the current’s path is closed.
Where the break-in path leads to no formation of current.
Chemical effects of electric current
The chemical reactions can occur when the current gets passed through the chemical solutions. It consists of:
Colour changes.
Metal Deposition
Gas bubbles form.
How to check current?
Many ways can help you to check current. These are:
1. Conductor:
The term ‘conductor’ refers to the tool which allows it to pass the current.
2. Tester:
A tester is a tool that helps to check the electric current.
In the tester, there is a presence of a led bulb.
The LED bulb will help you to determine the current.
Electrodes:
Two types:
Cathode
In the tester, there is a presence of a led bulb.
Anode
Electroplating:
Electroplating is the process of the deposition of layers. And this layer gets on the other material with the help of electroplating.
Learning Videos for 8th Grade Science - Chemical Effects of Electric Current
Chemical Effects of Electric Current Sample Questions for Class 8
Question 1
The movement of molecules in matter is energy.
A. chemical
B. thermal
C. electromagnetic
D. electrical
Question 2
A particle that cannot be broken down further is a(n)
A. compound.
B. mixture.
C. element.
D. atom.
Question 3
An ionic bond is the attraction between .
A. similarly charged ions
B. oppositely charged ions
C. neutral ions
D. neutral atoms
Question 4
As water begins to boil in a kettle, the hotter water at the bottom of the kettle closest to the stove begins to rise and the cooler water above sinks and warms. This is an example of .
A. conduction
B. radiation
C. convection
D. heat
Question 5
Mechanical waves that are created through areas of compression and rarefaction are called waves.