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d2jsp Forums > Off-Topic > General Chat > Science, Technology & Nature > Potential Difference In Electrical Circuits > Having A Hard Time Understanding
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Oct 6 2012 12:19pm
"V = W/Q where W = energy transferred and Q = the amount of charge flowing"

When it says W = energy transferred, is it referring to the amount of energy used to push the charge through the circuit? So in other words it's the work done/EMF?
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Oct 6 2012 04:11pm
I have no idea what this is, but Im pretty sure its more about the AMPS, or something around those lines.
Volts are what in theory push a certain amount of energy (amps) through electric circuits.

The amount of energy flows in a circuit, .. its not what "pushes".

But I could be 100% wrong, dont quote me on this.
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Oct 6 2012 06:03pm
it is what it says, moving a charge q across a potential difference V, either requires or gives away energy V*q. In batteries positive charges move from higher potential to lower potential, so energy is given out as heat, light, mechanical energy etc.

nb: in reality in a battery, negative charge flows from lower potential to higher potential, but its equivalent to the situation above as its just inverted
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