Electric charge Flashcards
What is the atom comprised of?
- electrons
- protons
- neutrons
What is the center of the atom called?
nucleus
What is a proton and its other name?
- a proton is positively electric charged
- is named the cathode
What is the neutron and its other name?
- a neutron has no electric charge
- its name is anode
What is the electron?
- an electron is a negatively electric-charged
- it also orbits around the nucleus
What happens when the atom loses an electron?
it becomes positively charged
What happens when the atom gains an electron?
it becomes negatively charged
What does an Anode do?
it’s a terminal where current flows in from outside a device
What does the Cathode do?
it’s a terminal where current flows out from a device
What is around any electrical charge?
an electric field
What does an electric field do?
it moves from the positive side to the negative side, because it is attracted
what is it called when the field is being attracted or repelled?
electric flux
What is E=F/Q
- E = electric field in V/m or N/C
- F = electric force in Newtons
- Q = charge in coulombs
What is electric current?
It is the flow of charge
What is charge measured in?
coulombs
