M3.2 Flashcards
Does a force field exist around every charged body?
Yes
What happens when a electron enters a metallic body?
Anther electron will be pushed out the other end due to the metallic body being riddled with electrons
What is electron flow?
Negative to positive
What is conventional flow?
Positive to negative
Does cross-sectional area affect the amount of electron flows per second?
No if the current stays the same
What is current density (j)?
The current per mm cross section-area
What happens to a conductor when more current is passed through?
The conductor will heat up
What are free electrons?
The electrons that get transferred from one material to the other
How does a wire go to white heat?
When the current is being passed through a small cross-sectional area (the electron-ions collide more often)