# Problem: A toaster oven is rated at 2000 W for operation at 120 V , 60 Hz . Part A Part complete What is the resistance of the oven heater element? Express your answer to two significant figures and include the appropriate units. R = 7.2 Ω Previous Answers Correct Part B Part complete What is the peak current through it? Express your answer to two significant figures and include the appropriate units. I0 = 24 A Previous Answers Correct Part C What is the peak power dissipated by the oven? Express your answer to two significant figures and include the appropriate units.

###### FREE Expert Solution

Power in circuits:

$\overline{){\mathbf{P}}{\mathbf{=}}\frac{{\mathbf{V}}^{\mathbf{2}}}{\mathbf{R}}}$

Peak current:

$\overline{){{\mathbf{i}}}_{\mathbf{m}\mathbf{a}\mathbf{x}}{\mathbf{=}}\frac{{\mathbf{V}}_{\mathbf{m}\mathbf{a}\mathbf{x}}}{\mathbf{R}}}$

Peak power:

$\overline{){{\mathbf{P}}}_{\mathbf{m}\mathbf{a}\mathbf{x}}{\mathbf{=}}{{\mathbf{i}}}_{\mathbf{m}\mathbf{a}\mathbf{x}}{{\mathbf{V}}}_{\mathbf{m}\mathbf{a}\mathbf{x}}}$

Part A

From the equation for power, P = V2/R, we can get R as:

80% (323 ratings) ###### Problem Details

A toaster oven is rated at 2000 W for operation at 120 V , 60 Hz .

Part A Part complete What is the resistance of the oven heater element? Express your answer to two significant figures and include the appropriate units. R = 7.2 Ω Previous Answers Correct

Part B Part complete What is the peak current through it? Express your answer to two significant figures and include the appropriate units. I0 = 24 A Previous Answers Correct

Part C What is the peak power dissipated by the oven? Express your answer to two significant figures and include the appropriate units.

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Our tutors have indicated that to solve this problem you will need to apply the RMS Current and Voltage concept. You can view video lessons to learn RMS Current and Voltage. Or if you need more RMS Current and Voltage practice, you can also practice RMS Current and Voltage practice problems.