Cambridge IGCSE Physics (0625)
1. Motion, forces and energy
2. Thermal physics
3. Waves
4. Electricity and magnetism
4.1 Simple phenomena of magnetism
4.2.1 Electric charge
4.2.2 Electric current
4.2.3 Electromotive force and potential difference
4.2.4 Resistance
4.2.5 Electrical energy and electrical power
4.3.1 Circuit diagrams and circuit components
4.3.2 Series and parallel circuits
4.3.3 Action and use of circuit components
4.4 Electrical safety
4.5.1 Electromagnetic induction
4.5.2 The a.c. generator
4.5.3 Magnetic effect of a current
4.5.4 Force on a current-carrying conductor
4.5.5 The d.c. motor
4.5.6 The transformer
5. Nuclear physics
6. Space physics
7. Assessed scientific skills
Mastery/IGCSE CAIE Physics/4. Electricity and magnetism/4.3.3 Action and use of circuit components

4.3.3 Action and use of circuit components

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4.3.3.1—P.d. across an electrical conductor

4.3.3.2—Action of a variable potential divider

4.3.3.3—Potential divider relation: R1/R2 =

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4.3.3 Action and use of circuit components