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 = 26 a previous answers correct part b how much charge passes through the element in 50 min? (assume direct current.) express your answer to two significant figures and include the appropriate units. q = value units submit previous answers request answer

Explanation:

Step1: Convert time to seconds

We know that 1 minute = 60 seconds. So, $t = 50\times60\ s=3000\ s$.

Step2: Use the formula for charge

The formula for charge $Q$ in terms of current $I$ and time $t$ is $Q = I\times t$. We found in part - A that $I = 26\ A$. Substituting $I = 26\ A$ and $t = 3000\ s$ into the formula, we get $Q=26\ A\times3000\ s = 78000\ C$.

Step3: Round to two significant figures

Rounding 78000 C to two significant figures gives $Q = 7.8\times 10^{4}\ C$.

Answer:

$7.8\times 10^{4}\ C$