[Grammar] with/for which

[oksuz_]

Hi,

It is the minimum bias voltage with/for which output pulses can be obtained.

what is the correct preposition for the above sentence? To me, it should be "with". However, there is "for" in the original sentence.

 

[Tarheel]

I agree with the writer of the original sentence (for).

 

[GoesStation]

Either one works for me, but I agree that with might be better. You apply a gradually increasing bias voltage until you observe an output pulse. This is the minimum voltage with which a pulse is obtained.