Subject: rise of direct current in absence of self induction

> In a direct current circuit without self-inductance,does the current jumps 
> to its final value?or is there another source of opposition to sudden rise 
> in current,such as inertia of electrons even if it be small(a constant 
> drift velocity is not established instantaneously).
> Also,with the presence of self inductance,how does back emf predict initial 
> di/dt for it to produce an opposing current at the initial instant of time?

Re: rise of direct current in absence of self induction