Recent content by rutman

thanks that rings true. it opens the question why I am setting B instead of H; I've seen maxwell equation formulations with D, H instead of E, B but I suppose what you are saying is that the E,B form is 'basic' and the D,H forms are 'dependent' theron. ie when i run current thru a wire i...

I am having trouble pinning down why the relative permeability of a transformer core will not directly affect the output voltage. In fact the voltage is determined by the turns ratio and is independent of mu of core material. Given this where is the flaw in the following reasoning: Induced...

hi i am using a lockin amplifier for the 1st time other than a canned college lab demo. i have a 5mV signal from a strain gage that is driven with 10Vpp at 1kHz or whatever i choose. the 5mV is increased to 5.01mV when i add some weight to the arm the gage is weighing. i wanted to increase...