P3.1.2 - Electric current Flashcards
1
Q
What is current?
A
Current is the rate of flow of charge
2
Q
To make a current flow what do you need?
A
A cell or a battery
3
Q
Which way does current flow?
A
It flows from the positive terminal to the negative terminal
4
Q
How do you calculate current?
A
Charge Flow (C) = current (A) x time (s)
5
Q
How much is 1mA in A
A
1 x 10 -3A
