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Summary Grade 11 Physical Sciences: Electrical Circuits Cheat Sheet

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Grade 11 Physical Sciences Electrical Circuits Cheat Sheet - a concise revision resource covering the key concepts and formulas you need to know when studying electrical circuits. This cheat sheet covers: • Series circuits • Parallel circuits • Ohm’s Law • Voltage (V) • Current (I) • Resistance (R) • Total resistance in series circuits • How current behaves in series circuits • How voltage behaves in series circuits • How voltage behaves in parallel circuits • How current splits in parallel circuits • Total resistance in parallel circuits Designed as a quick-reference resource for Grade 11 Physical Sciences students, this cheat sheet is useful for revising electrical circuits before tests, exams, or study sessions. If you need a simple and easy-to-review Grade 11 Physics electrical circuits summary, this resource brings the key rules and formulas together in one place.

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Summary
Circuits
01
Ohm’s Law
Formula: V=IRV = IRV=IR
V = Voltage (Volts, V)
I = Current (Amperes, A)
R = Resistance (Ohms, Ω)




Total
Resistance:
02
Series Rt​=R1+R2+R3

circuits
Current stays the
same


Voltage divides
across resistors



03 Formula
V=I/R
Voltage is the same

Parallel across all resistors in
parallel


circuits Current splits between
resistors

Total resistance is
lower than any
individual resistor




04 Conclusion
Circuits control the flow of electricity
through components like resistors and
capacitors. They come in two main types:
series, where components are connected in a
single path, and parallel, where components
are connected across multiple paths.

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Schooljaar
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Uploaded on
September 12, 2026
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2025/2026
Type
Summary
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