Need A Bit Of Help With A Physics Question

[MegpoidBeetle]

So there's a me studying for a test that's coming soon and I came upon a question that asks:

 

If the equation V=IR is used to define resistance, explain why is it not possible to use the same equation to define potential difference.

 

Only got one search result from Google and the answer is kinda vague. Would appreciate it if someone could describe it in layman's terms for me~

Edited October 12, 2015 by YOUR_MOTHER_HAVE_BANDAIDS

[Arcadiace]

Here you go.

[(PSN)IIIDevoidIII]

I actually never had a similar question, but would it not be because Ohm's law doesn't account for inductance or capacitance?

[MegpoidBeetle]

Here you go.

Kynareth bless you.

 

I actually never had a similar question, but would it not be because Ohm's law doesn't account for inductance or capacitance?

Well if I understood correctly from Arcadiace's link, it'd be more of due to potential difference being the work done per unit charge while Ohm's law (V=IR) is in actuality just the ratio between volt and amperes.

 

And engineering life was supposedly fun orz

[Arcadiace]

Well if I understood correctly from Arcadiace's link, it'd be more of due to potential difference being the work done per unit charge while Ohm's law (V=IR) is in actuality just the ratio between volt and amperes.

That'd be it, good sir.

[MegpoidBeetle]

That'd be it, good sir.

And once more saved by the forums! Thank you kindly ^^