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Physics Short Notes (Edexcel)
Key facts, formulas & definitions
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Electricity
Ohm's Law: V = IR
Power: P = IV = I²R = V²/R
Resistors in series: R_total = R₁ + R₂ + ...
Resistors in parallel: 1/R_total = 1/R₁ + 1/R₂ + ...