ElectricityComparison

Series vs Parallel: Complete Comparison

Part of Series & Parallel CircuitsGCSE Physics

This comparison covers Series vs Parallel: Complete Comparison 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 9 of 16 in this topic. Use this comparison to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 9 of 16

Practice

20 questions

Recall

30 flashcards

⚖️ Series vs Parallel: Complete Comparison

PropertySeries CircuitParallel Circuit
CurrentSame everywhere: I₁ = I₂Splits at junctions: I = I₁ + I₂
VoltageShared: V = V₁ + V₂Same across each branch: V₁ = V₂
ResistanceAdds up: R = R₁ + R₂Less than smallest: 1/R = 1/R₁ + 1/R₂
If one breaksWhole circuit stopsOther branches keep working
Real-world useOld Christmas lights, simple switchesHousehold wiring, modern lights

Keep building this topic

Read this section alongside the surrounding pages in Series & Parallel Circuits. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Series & Parallel Circuits

In a series circuit, what is true about the current at all points?

  • A. The current is the same at all points
  • B. The current decreases after each component
  • C. The current is largest near the positive terminal
  • D. The current splits at each component
1 markfoundation

A student adds an extra lamp to a parallel circuit. Explain how this affects the total current from the supply and the brightness of the original lamps.

2 marksstandard

Quick Recall Flashcards

Current in series circuits?
SAME everywhere (I₁ = I₂ = I₃) — only one path for current
Voltage in series circuits?
ADD UP to equal supply voltage (V_supply = V₁ + V₂ + V₃)

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