Electricity - Circuits Flashcards
1
Q
Kirchhoff’s First Law
A
The sum of the currents at a junction is zero.
2
Q
Components in series
A
Current must be the same, potential difference may be different.
3
Q
Kirchhoff’s Second Law:
A
The sum of the potential differences in a closed loop is zero
4
Q
Components in parallel:
A
Potential difference must be the same, current may be different.
5
Q
Emf equation:
A
∈= IR + Ir
