A toaster is plugged into a 120-volt household circuit. It draws 5 amps of current.
a. What is the resistance of the toaster?
b. What is the power of the toaster in watts?
c. What is the power in kilowatts?
Answer (3)
The resistance of the toaster is 24 ohms.
The power of the toaster in watts is 600 W.
The power in kilowatts is 0.6 KW.
What is the resistance of the toaster?
The resistance of the toaster is fraction of voltage over current .
R = V/I
R = 120/5
R = 24 ohms
What is the power of the toaster in watts?
The power of the toaster is a multiplication of voltage and current .
P = VI
P = 120*5
P = 600 W
What is the power in kilowatts?
1 kW = 1000W
P = 600/1000
P = 0.6 KW
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a. To find the resistance of the toaster, we can use Ohm's Law, which states that resistance (R) is equal to voltage (V) divided by current (I). In this case, the toaster is plugged into a 120-volt circuit and draws 5 amps of current. So the resistance of the toaster is 120 volts divided by 5 amps, which equals 24 ohms.
b. Power (P) is equal to voltage (V) multiplied by current (I). In this case, the toaster is plugged into a 120-volt circuit and draws 5 amps of current. So the power of the toaster is 120 volts multiplied by 5 amps, which equals 600 watts.
c. Power can also be expressed in kilowatts (kW), where 1 kilowatt is equal to 1000 watts. To convert the power of the toaster from watts to kilowatts, divide the power in watts by 1000. So the power of the toaster in kilowatts is 600 watts divided by 1000, which equals 0.6 kilowatts.
The resistance of the toaster is 24 ohms. The power of the toaster in watts is 600 W, and in kilowatts, it is 0.6 kW.
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