Question

Explained stream the effects of electrical current in the classroom teacher does not understand grades electrical device work on the sandwich ​

Answer 1

Answer:

What is an electric current? To produce an electric current, three things are needed: a supply of electric charges (electrons) which are free to flow, some form of push to move the charges through the circuit and a pathway to carry the charges. The pathway to carry the charges is usually a copper wire.Resistance reduces the amount of electrical energy that is transferred through matter. That's because some of the electrical energy is absorbed by the atoms and changed to other forms of energy, such as heat.