A steam iron draws 5.0 A when connected to

a potential difference of 122 V.
a) What is the power rating of this iron?
Answer in units of W

b) How much energy is produced in 15.0 min?
Answer in units of J

Please help me?

a. P = V*I = 122 * 5 = 610 W.

b. Energy=P*T = 610W * 900s=549,000 J.

Sure, I'd be happy to help you with these questions!

a) The power rating of an electrical device can be calculated using the equation:

Power (P) = Voltage (V) × Current (I)

In this case, the potential difference (V) is given as 122 V, and the current (I) is given as 5.0 A. So, the power rating (P) can be calculated as:

P = 122 V × 5.0 A = 610 W

Therefore, the power rating of this steam iron is 610 W.

b) To calculate the energy produced, we need to first find the power consumption of the iron, which we already calculated as 610 W. The energy used by an electrical device can be calculated using the equation:

Energy (E) = Power (P) × Time (t)

Here, the time (t) is given as 15.0 min. However, we need to convert the time from minutes to seconds because the power rating is given in watts, which is the energy per second. There are 60 seconds in 1 minute, so the time in seconds is:

t = 15.0 min × 60 s/min = 900 s

Now we can calculate the energy produced:

E = 610 W × 900 s = 549,000 J

Therefore, the energy produced by the steam iron in 15.0 minutes is 549,000 J (joules).