capacitors and inductors

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  • *Basics of CapacitorCapacitor : consists of two conducting plates separated by an insulator (or dielectric)

  • *Basics of CapacitorPassive elementAble to store energy in its electric fieldLarge capacitance : more charge can be storedCapacitance (C) : the ratio of the charge on one plate of a capacitor to the voltage difference between the two plates, measured in farads (F)

  • *Basics of CapacitorWhen the supply is removed from the capacitor, the capacitor retains the stored charge.The amount of charge that a capacitor can store per volt across the plates is its capacitance :1 farad = 1 coulomb / volt

  • *Basics of Capacitor Polarised Unpolarised

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  • *CapacitorCurrent voltage relationship :Voltage current relationship :Energy stored in capacitor :

  • *Series CapacitorTotal capacitance connected in series :

  • *Parallel CapacitorTotal capacitance connected in parallel :

  • *Basics of InductorInductor : consist of coil of conducting wire

  • *Basics of InductorPassive elementAble to store energy in its magnetic fieldInductance : the property whereby an inductor exhibits opposition to the charge of current flowing through it, measured in henrys (H)

  • *InductorCurrent voltage relationship :Voltage current relationship :Energy stored in inductor :

  • *Series InductorTotal inductance connected in series :

  • *Parallel InductorTotal inductance connected in parallel :

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