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Dicharging a Capacitor

134 bytes added, 22 May
Formula
===About Capacitor Discharge===
*The [[Electrical Charge|charge]], [[Potential Difference|voltage]] and [[Electrical Current|current]] also all decrease [[Exponential Decay|exponentially]] during '''discharge'''.*The [[Time Constant|time constant]] of a [[Electrical Circuit|circuit]] determines how quickly a [[capacitor]] '''discharges'''.*A large [[Time Constant|timeconstant]] constant means a slow '''discharge''', while a small [[Time Constant|timeconstant]] constant means a rapid '''discharge'''.
*[[Capacitor]] '''discharge''' curves are used to analyze the behaviour of RC circuits.
*Safety precautions are necessary when '''discharging''' large [[capacitor]]s to avoid [[Electrical Shock|electric shock]].
V is the [[Potential Difference|potential difference]] across the [[capacitor]] at time t,
I is the [[Electrical Current|current]] being '''discharged ''' by the [[capacitor]] at time t,
𝑄<sub>0</sub> is the initial [[Electrical Charge|charge]] stored,
V<sub>0</sub> is the initial [[Potential Difference|potential difference]] across the [[capacitor]],
I<sub>0</sub> is the initial [[Electrical Current|current]] through the [[Electrical Circuit|circuit]],
A [[capacitor]]'s rate of '''discharge''' in a [[Electrical Circuit|circuit]] is characterised by the [[Capacitor Time Constant|time constant]] 𝜏 which is given by the formula:
===Examples===
*In a [[defibrillator]], the [[capacitor ]] '''discharges ''' its energy quickly to deliver a shock to a patient's heart.*In RC timing circuits, capacitors [[capacitor]]s '''discharge ''' to control the timing intervals.