Chemical Effects Of

Electric Current

What Is Good Conductor???• Good conductors are

materials that are able to conduct electricity or heat. They are substances that are able to carry a complete electric current in end-to-end voltage.

• For example: copper, gold, silver, aluminium, etc

What Is Bad Conductor???

• A bad conductor of heat means that such a substance does not conduct or transfer or absorb heat. Examples of bad conductors are wood, plastic, ceramics, paper, rubber. Most ceramics and plastics are bad conductors of electricity.

Testers

• Testers can be made by constructing an electrical circuit using a bulb wires and cells as shown in figures.

• A flow of electric current through a material can also be checked by deflection of the needle of a magnetic compass.

• A testers can also be made using an LED(light emitting diode).

Conductivity Of Liquid• a tester to check if electricity is

flowing through a wire in a circuit. If the bulb in the tester glows, it indicates that current is flowing through the wire; else, current does not exist. Electrical conductivity of liquids can be explained by a simple activity of taking a liquid, like lemon juice, in a container, inserting electrodes in it, connecting the two electrodes to the terminals of a battery with a bulb between them. The bulb glows, indicating that lemon juice is a conductor of electricity. Several liquids can be checked for electrical conductivity on in the same way.

Made By Rahul Chawla ,VIIIB