Series-Parallel Resistive Circuits Flashcards
In a series-parallel circuit, what happens if a parallel branch burns out or is removed?
Total resistance increases, decreasing total current which decreases the volt drops across all resistors not in parallel with the removed.
The voltage will increase across the remaining branches due to Kirchoff’s voltage law.
In a series-parallel circuit, what is often a good first step to solve the circuit?
Find the total equivalent resistance.
In a series-parallel circuit what happens when a new resistor is added in series?
The total resistance increases, which will decrease total current, resulting in a decreased voltage drop across every other resistor.
In a series-parallel circuit what happens when a new resistor is added in parallel?
Total resistance decreases, increasing total current, resulting in an increase of the voltage drop across every resistor not in parallel with the addition.
Those resistors in parallel with the addition will experience a decreased voltage drop across them, with a decreased current.
How would one determine if two resistors are directly in series?
They experience the same current.
How would one determine if two resistors are directly in parallel?
They will experience the same voltage drop.
When solving a series parallel circuit what are some invaluable tools?
- Ohms law
- Kirchoff’s voltage law
- Kirchoff’s current law
- Current divider principle
- Series resistance rules
- Parallel resistance rules
