C10 (Electrical Circuits) Flashcards
1
Q
Kirchoff’s second law
A
Says that the total energy transferred to the charges in a circuit (emf) is equal to the total energy transferred from the charges (terminal p.d) as they move around the circuit
2
Q
What is the same at every position in a series circuit
A
Current
3
Q
Using Kirchoff’s first law what can you say about the rate of flow of charge in the circuit
A
It’s the same at all positions
The charge is not used up, it just flows around the circuit
4
Q
In a series circuit the sum of emf is equal to what
A
The p.ds across all components
5
Q
When there are multiple sources of e.m.f the p.d across each component must add up to…
A
The total e.m.f
6
Q
Equation for current
A
I= Change Q/ Change t
7
Q
Voltage equation
A
W/Q
8
Q
Power equation
A
V x I
9
Q
Voltage equation
A
I x R
