Question

what is the current in the element of an electric clothes dryer with a resistance of 9.4 ω when it is connected to 240 v? express your answer to two significant figures and include the appropriate units. i = value units

Explanation:

Step1: Recall Ohm's law

$I=\frac{V}{R}$
where $I$ is current, $V$ is voltage and $R$ is resistance.

Step2: Substitute values

Given $V = 240\ V$ and $R=9.4\ \Omega$, then $I=\frac{240}{9.4}\ A$.

Step3: Calculate and round

$I=\frac{240}{9.4}\approx25.53\ A$. Rounding to two - significant figures, $I = 26\ A$.

Answer:

26 A