Electronics > Beginners
Kirchhoff’s Voltage Law (KVL) and how important is it?
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TimFox:
Ohm's law is independent of Maxwell's equations.  It is just a linear approximation to the relationship between current density and electric field, which is quite accurate for solid conductors and not appropriate to semiconductor junctions or space-charge limited vacuum diodes.  Objects that satisfy Ohm’s Law are called “ohmic”.
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