Question

The heating element of an iron operates at 110 V with a current of 11 A.(a) What is the resistance of the iron? Ω(b) What is the power dissipated by the iron? W

Answer 1

(a)

In order to calculate the resistance, we can use Ohm's Law:

(b)

To calculate the power, we can use the formula below:

`\begin{gathered} P=I\cdot V\\ \\ P=11\cdot110\\ \\ P=1210\text{ W} \end{gathered}`