Ohm's Law: Resistance, Voltage, & Current

AI Thread Summary
Current flows from positive to negative in a conventional sense, but in metallic conductors, electrons are the actual charge carriers. One ohm of resistance does not block a specific voltage; rather, it is a unit of measurement for resistance itself. Resistors do not increase voltage; they decrease current in a circuit. In a series DC circuit, the total voltage across resistors equals the source voltage. Understanding these principles is crucial for applying Ohm's Law effectively.
DrDanger
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Currnet flows from positive to negative right? cause you assume the path a proton would take?! also how much resistance does one ohm provide? does it block 1 volt? and resistors increase voltage and decrease current right? thanks!
 
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DrDanger said:
Currnet flows from positive to negative right? cause you assume the path a proton would take?!

Sorta, but no. There is a convention of positive current flow, in reality electrons are the current carriers in metallic conductors. You can use either negative or positive current flow, all is the same except for signs. Protons do not move as current in metallic conductors, they form the crystalline lattice which the electrons move through.

also how much resistance does one ohm provide?

Ummmm... 1 ohm!
Since ohms is the units for resistance there cannot be any other answer.

does it block 1 volt? and resistors increase voltage and decrease current right? thanks!

Resistance does not increase voltage. It does reduce current.

In a simple series DC circuit the sum of the voltages of the resistors equals the voltage of the source.
 
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