Conductors and insulators Flashcards
0
Q
What is good as a conductor
A
Meal is good as a conductor because they have delocalised electrons
1
Q
What is the electric current doing in a conductor?
A
It can flow freely
2
Q
What does the electrical current do in an insulator?
A
Electric current cannot flow
3
Q
What do we use insulators for?
A
To protect ourselves against the dangers of electricity
4
Q
What are examples of insulators
A
Plastic, wood, wool
5
Q
What are semi conductors
A
Behave like insulators when cold. But when temperature increases, the behave like conductors. This is because when they get hotter they have more energy
