Parallel circuits Flashcards
1
Q
What are parallel circuits?
A
A circuit in which the electric current passes through two or more branches.
2
Q
Describe the current in a parallel circuit.
A
The total is current is shared between individual branches.
3
Q
How do we calculate the current in a parallel circuit?
A
Total current = I₁ + I₂ + I₃
4
Q
Describe the p.d. in a parallel circuit.
A
P.d. is the same across all branches.
5
Q
How do we calculate the p.d in a parallel circuit?
A
V₁ = V₂ = V₃
6
Q
Describe the resistance in a parallel circuit.
A
Total resistance decreases as more components are added.
7
Q
How do we calculate the resistance in a parallel circuit?
A
Total resistance = (R₁ * R₂)/(R₁ + R₂)
