RoveyDoveyGrovey
New Member
I was just wondering something about a simple circuit, that is when you short circuit a battery. You can show that the battery or short circuiting wire will fail by using the equation for power.
p = v^2 / R
So for an AA battery,
p = 1.5^2 / 0
So
p = infinite watts and therefore lots of heat and probably an exploding battery.
but what if you use this form of the power equation,
p = i^2 x r
i = v/r
so,
i = 1.5 / 0
so,
i = infinity
so,
p = infinity x 0
What is infinity x 0??? who wins?? Im guessing infinity because the battery will explode and it won't explode if there is 0 watts but how do you prove this? I was always told that anything multiplied by zero = zero and anything multiplied by infinity = infinity but I was never told what infinity x zero = equals.
p = v^2 / R
So for an AA battery,
p = 1.5^2 / 0
So
p = infinite watts and therefore lots of heat and probably an exploding battery.
but what if you use this form of the power equation,
p = i^2 x r
i = v/r
so,
i = 1.5 / 0
so,
i = infinity
so,
p = infinity x 0
What is infinity x 0??? who wins?? Im guessing infinity because the battery will explode and it won't explode if there is 0 watts but how do you prove this? I was always told that anything multiplied by zero = zero and anything multiplied by infinity = infinity but I was never told what infinity x zero = equals.