Electrical circuits Flashcards
1
Q
what is a battery made up of
A
two cells
2
Q
how to calculate voltage
A
currant times resistance
3
Q
how to calculate current
A
voltage over resistance
4
Q
how to calculate resistance
A
voltage over current
5
Q
what are the main components of a circut
A
battery, lamp and a switch
6
Q
what is a electron
A
a electron is subatomic charge with a negivitive charge
7
Q
what is resistance
A
resistance is the opposition of an electrical flow
8
Q
what is voltage
A
it is the “pressure “that pushes electoral flow
9
Q
A
