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Charge flow and electrical power Charge and current4.1 Energy, power and resistance4.2 Circuit symbols4.2.1
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Course idea

Circuit symbols

OCR A AS Physics · 4.2.1

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.
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H156 v2.0 · May 2026

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