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*'''&lambda;λ''' sebagai [[konstanta]] [[bilangan positif dan negatif|positif]] (''[[konstanta peluruhan]]'').

Ketika ''t=0'', eksponensialnya setara dengan 1, sedangkan ''N(t)'' setara dengan <math>N_0</math>. Ketika ''t'' mendekati [[tak terbatas]], eksponensialnya mendekati nol.

The generalized constant &lambda;λ can represent many different specific physical quantities, depending on what process is being described. For a comprehensive list of processes described by half-lives, see [[Exponential decay]].

* In an [[RC circuit]] or [[RL circuit]], &lambda;λ is the reciprocal of the circuit's [[time constant]] &tau;τ. For simple RC and RL circuits, &lambda;λ equals <math>RC</math> or <math>L/R</math>, respectively.

* In first-order [[chemical reaction]]s, &lambda;λ is the [[reaction rate constant]].

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