IP Physics Notes (Upper Secondary, Year 3-4): 11) Current of Electricity
In one line
Relate charge flow, potential difference, resistance, and I-V characteristics to core IP circuit analysis.
Last updated 30 Nov 2025
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- Start Here
- Charge & Current
- Electromotive Force vs Potential Difference
- Resistance & Ohm's Law
Q: What does IP Physics Notes (Upper Secondary, Year 3-4): 11) Current of Electricity cover?
A: Relate charge flow, potential difference, resistance, and I-V characteristics to core IP circuit analysis.
Quick recap - Electric current measures how quickly charge moves. Define the energy supplied (emf) and used (p.d.), then apply Ohm's law, resistivity relations, and characteristic curves to decode circuit behaviour.
Start Here
| Read time | What to take away |
| 1 second | Current is charge flow per second. |
| 10 seconds | Link charge, current, time, voltage, resistance, and energy carefully. Use Ohm's law only when the component behaves ohmically at constant temperature. |
| 100 seconds | Use the resistivity and I-V sections to practise identifying variables, reading graph shape, and explaining why metals, lamps, and diodes behave differently. |
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These notes align with SEAB GCE O-Level Physics (6091) content used in IP programmes (exams from 2026).
Status: SEAB O-Level Physics 6091 syllabus (exams from 2026) checked 2025-11-30 - scope unchanged; remains the reference for these notes.
Charge & Current
- Charge
