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lianardo-leBong
how can i determine if the potential difference across each component (e.g voltage and resistor) and is positive or negative?
your goal is potential difference in circuit?|dw:1329149864334:dw| your end is where i signed in image?
thanx i've an idea now how to do it..
|dw:1330018145660:dw|if we go in the positive direction (starting from the positive terminal of the battery) the voltage drop across a resistor is negative\[\Delta V=IR\]if we go from the negative end of the terminal the voltage change is positive I is the current, R is the resistance, and V is the voltage