Charge in circuits Flashcards
1
Q
what is electrical charge is measured in?
A
Coulombs (c)
2
Q
A current of 1 ampere means that…
A
A current of 1 ampere = 1 coulomb of charge flowing per second
3
Q
what is the size of electric current equal to?
A
The size of electric current is the rate of flow of electric charge.
4
Q
What is the equation for electric charge?
A
Q(c) = I x T Charge flow(c) = current(A) x time(s)
5
Q
rearrange the equation to find current
A
current(A) = charge flow(c) / time (s)
6
Q
calculate the current of a circuit where 360c of charge flows around a circuit in 400s.
A
0.9A
charge flow(c)= current(A) x time(s) current(A)= charge flow(c) / time(s) 0.9A = 360C / 400s
7
Q
If current flowing in a circuit is 0.3A in 20s
What is the charge?
A
6C
Charge flow(c)=current(A) x time(s) 6C = 0.3A x 20s
