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● Mechanics and materials● Electricity● Waves and quantum● Practical and maths skills

Explore the idea Circuit symbols Explore circuit symbols within energy, power and resistance. Potential difference measures energy transferred per unit charge. Combine it with current to calculate power, and investigate how components respond to changing voltage. Specification outcomes (2) 4.2.1(a) Recognise and use standard circuit symbols. 4.2.1(b) Construct and interpret circuit diagrams using correct symbols. Open the official OCR AS specification ↗ H156 v2.0 \cdot May 2026 See it in an exam No exam example linked yet. You can still explore the explanation and related topics. PhysicsUK practice Solve QWC No PhysicsUK question linked yet. New eligible questions appear here as the bank grows.

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