# resistance and current [closed]

I struggle to understand how if I increase the resistance in a circuit, it requires less current, based of ohms law.

## closed as unclear what you're asking by winny, RoyC, Finbarr, Sparky256, RenanMar 5 '18 at 16:41

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• Ohms law does not speak of temperatures only volts, amps and ohms. – Andy aka Mar 1 '18 at 9:24
• you mean how does this formula work? I=V/R with Resistance formula is: R = ρL/A Where: ρ: Resistivity constant of the material, in Ω.m L: Length of the wire, in meter A: Cross sectional area of the wire, in m^2 R: Resistance, in ohms (Ω) – Sunnyskyguy EE75 Mar 1 '18 at 9:33
• Argh! Resistance blocks the flow of current. Current that does flow through resistance creates heat, even if a tiny bit. – Sparky256 Mar 4 '18 at 5:18