INDEX of notes comparing function of series circuits and parallel circuits igcse/gcse 9-1 Physics revision notes AQA Edexcel OCR examination revision notes

ELECTRICITY Part 5 INDEX of notes on:

comparing the structure and function of series and parallel circuit diagrams, measurements and I-V-R calculations

[Author © Dr WP Brown PhD: Doc Brown's physics exam revision notes suitable for students of UK IGCSE & GCSE level physics courses, ~ US grades 9-10 physics, electricity-4 page updated Feb 13th 2026 *]

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Sub-index: Electricity section 5 Comparing the construction and of functioning of series circuits and parallel circuits

This section will answer help you answer questions such as e.g.

What is the formula for Ohm's Law relating potential difference, current flow and resistance?

What is the difference between series and parallel in electrical circuits?

How do you calculate potential differences, resistances, current flows using Ohm's Law?

5.1 What you need to know about a simple series circuit

5.2 Calculations involving a series circuit

5.3 Total resistance of a circuit adding identical resistors in series (compare with 5.6)

5.4 Investigating a simple parallel circuit (compared to a series circuit)

5.5 Looking at the total resistance of any parallel circuit

5.6 Total resistance of a circuit adding identical resistors in parallel (compare with 5.3)

5.7 Extra QUESTIONS on series and parallel circuits with worked out ANSWERS

For future questions and see lots of examples of basic circuits

spare diagrams for future use

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Electricity and magnetism revision notes index

1. Usefulness of electricity, safety, energy transfer, cost & power calculations, P = IV = I²R, E = Pt, E=IVt

2. Electrical circuits and how to draw them, circuit symbols, parallel circuits, series circuits explained

3. Ohm's Law, experimental investigations of resistance, I-V graphs, calculations V = IR, Q = It, E = QV

4. Circuit devices and how are they used? (e.g. thermistor and LDR), relevant graphs

5. More on series and parallel circuits, circuit diagrams, measurements and calculations

6. The 'National Grid' power supply, environmental issues, use of transformers

7. Comparison of methods of generating electricity (= energy part 6)

8. Static electricity and electric fields, uses and dangers of static electricity

9. Magnetism - magnetic materials - temporary (induced) and permanent magnets - uses

10. Electromagnetism, solenoid coils, uses of electromagnets

11. Motor effect of an electric current, electric motor, loudspeaker, Fleming's left-hand rule, F = BIL

12. Generator effect, applications e.g. generators generating electricity and microphone

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