ohms

Question

0

876

2

A 144.0watt heater is running in your lounge supplied by a 119.3volt supply, what is the resistance of the element?

Guest Mar 27, 2012

ricom39 · Answer 1 · 2012-03-27T09:23:33

P=U.I I=U/R hence P= U^2/R and R=U^2/P

So R = 119.3^2 /144 = 98,8 Ohm

smjones · Answer 2 · 2012-03-27T07:48:43

R= P /I^2 or R= U^2/P or R= U /I

R= Resistance in Ohms
P= Wattage
I= Amperage
U= Volts