I feel like this is a dumb question but i’m still gonna ask
In: 1
It isn’t a difference, it’s a ratio.
Watts is a unit of power.
Volts is a unit of electric potential.
Amperes is a unit of charge flux.
P = I * V
In short, power is the product of current AND voltage.
We need to be a little bit careful, because this relationship is only true in many senses when dealing with DC. AC works a bit differently since their is a real and imaginary (reactive) power component associated with a circuit (unless it is a purely resistive device).
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