Electric Conductivity and Resistivity

Q.

Which of the following can conduct electricity?

1. Plastic

2. Human body

3. Rubber

4. Wood

Q.

What is a free electrons in the conductor?

Q.

Which among the following allows electrons to flow freely?

1. Copper

2. Rubber

3. Wood
   

4. Plastic

Q. Why do electricians wear rubber gloves?

1. They are insulators.
2. They are soft.
3. They are inexpensive.
4. They are waterproof.

Q. Choose the examples of conductors.

1. Iron
2. Steel
3. Wood
4. Copper
5. Silver
6. Plastic
7. Glass
8. Gold

Q. In conductors, electrons can flow because their ________.

1. protons are free
2. negative ions are free
3. outer electrons are free
4. ions are free

Q. Electrons can easily flow through conductors.

1. True
2. False

Q. Which of the following materials is a good conductor of electricity?

1. Rubber
2. Silver
3. Wood
4. Plastic

Q.

The flow of which of the following fundamental particles leads to the existence of electricity in a conductor?

1. Electrons

2. Atoms

3. Protons

4. Nuclei