Pro/Forums - View Single Post - Quick wiring question: 12->7volt mod

Heavy_Equipment · 04-05-2002, 07:27 PM

Good spot for an Ohm's Law lesson. lol

As long as you know two values, you can calculate the third.

E
------
I x R

E=Voltage
I=Amperage
R=Resistance (Ohms)

E = I x R
I = E divided by R
R= E divided by I

I have a question to add.

I'm told watts can be calculated from the same formula, but I've never seen how to do it/don't know the relation. Anybody throw a quick wattage lesson in for me?

04-05-2002, 07:27 PM	#17
Heavy_Equipment Cooling Savant Join Date: Mar 2002 Location: Newmarket, Ontario, Canada Posts: 282	Good spot for an Ohm's Law lesson. lol As long as you know two values, you can calculate the third. E ------ I x R E=Voltage I=Amperage R=Resistance (Ohms) E = I x R I = E divided by R R= E divided by I I have a question to add. I'm told watts can be calculated from the same formula, but I've never seen how to do it/don't know the relation. Anybody throw a quick wattage lesson in for me?