A Law of Ohm

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A Law of Ohm

E
IR

Variations

voltageE=IR
currentI=E/R
resistR=E/I
powerP=I^2R P=E^2/R

Composition

1
=1
+1
+... 1
=1
+1
+...
RR1R2 CC1C2

Variations of Composition

voltageE=E1*R2
R1+R2
resistanceR1=(E1-E)*R2
=(E1-E)
*R2
EE
E:purpose E1:supply R1:connect to supply R2:connect to ground