Name _______________________________________________ Block _________
COMBINATION CIRCUITS
1. Determine which resistors are connected in series and which are connected in parallel.
Solve for resistance using the appropriate formula.
RT = R1 + R 2 + R 3
𝟏
𝟏
𝟏
𝟏
=
+
+
𝑹𝑻
𝑹𝟏 𝑹𝟐
𝑹𝟑
2. Redraw the circuit, replacing each of those series or parallel resistor combinations
identified in step 1 with a single, equivalent-value resistor
3. Repeat steps 1 and 2 until the entire circuit is reduced to one equivalent resistor.
4. Calculate total current from total voltage and total resistance.
𝑰𝑻 =
𝑽𝑻
𝑹𝑻
Find the total resistance in each circuit.
1.
2.
3.