I'm trying to work out an equation for the circuit below,but unfortunately I'm not having success.I've managed to get the expression for I1 which is:(adsbygoogle = window.adsbygoogle || []).push({});

I1=(Vin)/2R

How do I find now the expression for I2?Following the equation V=RxI where V is the difference at both terminals of the resistance I need to find the value tension at point A.How do I find that value?I've found the parallel resistance between the resistances that correspond to currents I3 and I4 which is R by I don't know how to work it from that!

Any help is really appreciated!Thanks in advance!

http://i75.photobucket.com/albums/i281/esmeco/digitalanalogicconverter.jpg

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# Homework Help: Digital-Analogic conversion help

**Physics Forums | Science Articles, Homework Help, Discussion**