Consider the gorgeous ascii art circuit below, where the C's are meant to be the inductor and the > indicates the direction of current.

Va --->---CCCCC------ Vb

Now everyone knows that the voltage drop across an inductor is

Va - Vb = L di/dt.

So according to this equation, if the current is increasing in the direction shown, the voltage drop (Va-Vb) will be positive. But I thought that an inductor was supposed to oppose a changing current. By that logic, when the current increases in the direction shown, shouldn't the inductor induce an opposite voltage (Vb > Va), in which case Va - Vb would be negative.

I'm sure there is a simple answer, but I've been pulling my hair out trying to resolve this.

Thanks,

-J