P4.6 Parallel circuits Flashcards
1
Q
What is the total current equal to in a parallel circuit?
A
The sum of the currents through the separate branches
2
Q
What is the potential difference in a parallel circuit?
A
Is the same across all componenets
3
Q
What is the equation to calculate current?
A
Potential difference / resistance
4
Q
Why does adding more resistors in parallel decreases the total resistance?
A
Multiple paths for charge to flow in
total current is greater (for the
same potential difference when
more resistors are added)
If current is greater then R = lower because R = V/I
