Answer to Question #310847 in Electric Circuits for JoeTingz

Question

A 240 V two-bar electrical eadiator is rated 1 KW per bar. Calculate the resistance in the radiator circuit when one bar is switched on.

Answer 1

Solution.

$V=240V;$

$P=1000W;$

$R-?;$

$P=\dfrac{V^2}{R}\implies R=\dfrac{V^2}{P};$

$R=\dfrac{240^2}{1000}=57.6\Omega;$

Answer: $R=57.6\Omega.$