Question

question 10
a particular extension cord can support up to 8 amps. mo has an iron whose label states 1,200 watts and wonders if the iron can be plugged into the extension cord. if watts are converted to amps by dividing by 120, how many amps does the iron use?
a 100 amps
b 1 amp
c 10 amps
d 120 amps
6 points

Explanation:

Step1: Identify the formula

The relationship between watts, volts, and amps is given by \( P = VI \), where \( P \) is power in watts, \( V \) is voltage in volts, and \( I \) is current in amps. To find amps, we rearrange the formula to \( I=\frac{P}{V} \). Here, \( P = 1200 \) watts and \( V = 120 \) volts (since we divide by 120 to convert watts to amps, implying voltage is 120V).

Step2: Calculate the current

Substitute the values into the formula: \( I=\frac{1200}{120} \)
Simplify the division: \( \frac{1200}{120}=10 \)

Answer:

C. 10 amps