Electricity Part 2 - Kirchoff’s Laws Flashcards
1
Q
Define Kirchoff’s First Law.
A
The sum of the currents entering any point (junction) in a circuit is equal to the sum of the currents leaving that same point (junction).
2
Q
Describe the conservation of charge.
A
In a circuit, charge is conserved.
Sum of current in = sum of current out in a junction in a circuit.
3
Q
Define Kirchhoff’s Second Law.
A
The sum of e.m.f s in a closed loop is equal to the sum of p.d s in that loop.
E = IR1 + IR2