Spiral - iron

An electric iron is connected to a 230 V voltage source. Its heating coil has an electrical resistance of 100 ohms. Calculate the power of the iron and the electric current flowing through the coil.

Correct answer:

I =  2.3 A
P =  529 W

Step-by-step explanation:

$$\begin{gathered} U=230\text{V} \\ R=100\Omega \\ I=\frac{U}{R}=\frac{230}{100}=2.3\text{A} \end{gathered}$$

$P=U\cdot I=230\cdot 2.3=529\text{W}$

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