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Understanding Capacitance and the Farad in Capacitors

Explore the concept of capacitance and the Farad, including charge movement inside capacitors. Learn calculation equations and analyze capacitor discharge with RC circuit time constant. Understand exponential decay phenomena.

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Understanding Capacitance and the Farad in Capacitors

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  1. Define Capacitance and the Farad

  2. G482 Module 2 - Capacitors

  3. Module 2: Capacitors Create an analogy to describe the movement of charge within a capacitor Select(and use) an appropriate equation for calculating the charge stored on a capacitor Definecapacitance and the farad E/D B/A A

  4. Capacitance and the Farad The charge stored per unit potential difference, as given by C = Q/V. Unit of capacitance (F). 1 F is 1 C of charge stored per volt.

  5. Potential difference against charge graph W V Q

  6. Module 2: e-capacitors Analyse the discharge of a capacitor after a time, t. Usethe RC circuit time constant, τ, where appropriate. Describean exponential decay E/D B/A A

  7. * *If you’re under 18 beer is horrible, if you’re over 18 beer is awesome

  8. h0 h = h0 e-λt h t0 t

  9. X0 X = X0 e-t/CR I = I0 e-t/CR Q = Q0 e-t/CR V = V0 e-t/CR For radioactive decay A = A0 e-λt X t0 t

  10. Module 2: e-capacitors Analyse the discharge of a capacitor after a time, t. Usethe RC circuit time constant, τ, where appropriate. Describean exponential decay E/D B/A A

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