Flashcards in P2 Physics - static energy, current and voltage Deck (9)
what happens when a substance loses electrons?
it becomes positively charged
what happens when a substance gains electrons?
it becomes negatively charged
if the charges of a substance are the same what happens
if the charges of a substance are opposite what happens
when can a current flow?
when an electric charge flows through a resistor
what is current measured in?
what is current measured with?
what is voltage measured in