This diagram covers Worked Example: Mixed Circuit within Series & Parallel Circuits for GCSE Physics. Revise Series & Parallel Circuits in Electricity for GCSE Physics with 20 exam-style questions and 30 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 7 of 16 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.
Topic position
Section 7 of 16
Practice
20 questions
Recall
30 flashcards
📊 Worked Example: Mixed Circuit
PROBLEM: Find total resistance and current from a 12 V supply
Circuit: Two 6Ω resistors in parallel, connected in series with a 4Ω resistor
STEP 1: Find parallel resistance
Two 6Ω in parallel: R = (6 × 6)/(6 + 6) = 36/12 = 3Ω
STEP 2: Add series resistance
Rtotal = 3Ω + 4Ω = 7Ω
STEP 3: Find current (Ohm's Law)
I = V/R = 12/7 = 1.71 A (throughout the circuit)