Electricity and magnetism

Capacitance and stored energy

C = Q/V = κε0A/d  ·  U = ½CV2

C capacitance, Q charge, κ dielectric constant, A plate area, d separation

Watch forCapacitors combine opposite to resistors: add in parallel, reciprocals in series.

Apply it · 4 questions

  1. Capacitance with a dielectric and smaller gapElectricity, magnetism, and electrochemistry · set 1 · medium
  2. Adding a dielectric to a capacitorElectricity, magnetism, and electrochemistry · set 1 · medium
  3. Capacitors in seriesElectricity, magnetism, and electrochemistry · set 1 · medium
  4. Energy stored in a capacitorElectricity, magnetism, and electrochemistry · set 1 · medium