⚡ 9. Electricity & Circuits
📖 Theory – ⚡ 9. Electricity & Circuits
Current I = ΔQ/Δt (rate of flow of charge).
Resistance R = V/I (Ohm's law).
Resistivity ρ = RA/l.
Power P = IV = I²R = V²/R.
Kirchhoff's laws: current and voltage laws.
Resistors in series: R_total = R₁ + R₂ + R₃ + ...
Resistors in parallel: 1/R_total = 1/R₁ + 1/R₂ + 1/R₃ + ...
EMF is the energy supplied per unit charge by a source.
🏆 Level 1
⭐ 0 points
🔥 0 day streak
📚 0 answered
🔬 0 experiments
📝 Practice Questions
Score: 0/0