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FromTheRafters FromTheRafters is offline
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Default Switchable Wall Outlet

trader_4 used his keyboard to write :
On Wednesday, December 28, 2016 at 5:47:10 PM UTC-5, Ralph Mowery wrote:
In article ,
says...


And Ohms Law still applies and works. V = IR. I=0, gives V =0,
the voltage drop across the conductors is zero. Nor was there any
division by zero, so don't start in with that again, please.

I wouldn't dream of it, but given I=0 and nothing else, you can't nail
down V nor can you nail down R by using Ohm's Law. Ohm's Law does *not*



There is always some current flowing. It may only be a couple of
electrons and not detectable by any common means. In the simple circuit
where there is a switch and the insulation is several inches between
conductors when the switch is in the off position, there is still a very
, very small current flow across a very large resistance. Therefor as
they say 99 and 44/100 % of the voltage is dropped across the switch
when it is in the open position.

All of this is picking the nits off the nits.


I agree, but it's Rafter's specialty.



So ther is never a 0 in the equation.


Even in the ideal case, where there is zero current flow,
Ohm's Law, Kirchoff's Voltage Law, still work. For some bizarre
reason, Rafters claims that when we have V = IR, if I is zero,
some law of mathematics involving division by zero is violated,
so we can't solve for V. Everyone else here agrees we can and
the answer is zero.


You can't know that *everyone* agrees until *everyone* says so, and I
don't mean someone using "everyone" as a nym either.

What any of this has to do with wiring a switch, IDK, but here we are.


You should be able to stop at any time, but you can't can you? The
reason this switch thread devolved into this is because of your remark
about electrical engineers not being worth their salt if they don't
know about some minutia about cutting a plate on a duplex receptacle.

https://dengarden.com/home-improveme...alf-hot-outlet

Instead of helping the poster, you decided to attempt to make yourself
look better than him (as you almost always do) by denigrating him and
the place he got his degree from. IMO he learned a good deal more about
the subject than you did, and put it to use in a much more complicated
field.