Wheatstone Bridge 

Excellent explanation, good work mate.

I hope those sat in the classroom appreciate your efforts.

I always loved this principle, a a pair of voltage dividers that form a resistance to voltage converter that just gives the differential output, genius, obvious the differential output wound be fed into a low noise variable gain differential amplifier amplifier in a finished LCR bridge or when using very low output sensors in place of the resistors, ie the strain gauge for a weighing scale and so on, its cool that the same principle can be used with inductors and capacitors too.. great video kram as soon as im well enough i will get in my lab and make a complimentary follow up to this with the capacitance bridge. And also the inductance bridge (Maxwell bridge) ... do you have any strain gauges/load cells around? Maybe a part 2?? 😂.......

Thanks for making this - really interesting. Would be interesting to know how much current a period appropriate Voltmeter would draw? I bought a vintage Air Ministry one for aircraft battery levels, it draws a peak of 3mA.

next up... kelvins wattmeter, thankyou. this is the stuff one should be learning. the meat and potatoes. none of this theoretical wish wash.