Cambridge IGCSE Physics Revision Core Concepts Exam Preparation Online
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Lesson 4.3.3: Combined Resistance ??? Calculating total resistance in series (R = R1 + R2) and parallel (1/R = 1/R1 + 1/R2); problem-solving with circuits.
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Lesson 4.3.2: Parallel Circuits ??? Analyzing current (divides) and voltage (same across branches) in parallel circuits; practical circuit construction.PreviousLesson 4.3.4: Potential Dividers ??? Using potential divider circuits to split voltage; applications like volume controls and sensor circuits.Next