P2 : Charge and Current Flashcards
1
Q
Charge
A
Charge is composed of negatively charged electrons that move throughout a circuit when given a force by a battery or power supply
2
Q
Unit of charge
A
Coulombs
3
Q
What charge does each electron carry
A
- 1.6 x 10 (-19)
4
Q
How much electrons are in one coulomb
A
18
6.25 x 10
5
Q
Current
A
The rate of flow of charge (How much charge is flowing each second) measured in Amps with an anmeter
6
Q
Anmeter
A
Measures the number of charges that flow through it in one second meaning thy must go in series
7
Q
What equation links charge, current and time
A
Q = I x T
Q = Charge measured in Coulombs (C)
I = Current measured in Amps (A)
t = Time (s)
8
Q
What is I in the equation Q = I x t
A
Current (measured in Amps)
9
Q
What is Q in the equation Q = I x T
A
Charge (Measured in Coulombs (C)
