The Heater Element of a 120 V Toaster Is a 5.4

question 21

Multiple Choice

The heater element of a 120 V toaster is a 5.4 m length of nichrome wire,whose diameter is 0.48 mm.The resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10^-6 Ω·m.The toaster is operated at a voltage of 120 V.The power drawn by the toaster is closest to:

• A)370 W
• B)360 W
• C)380 W
• D)400 W
• E)410 W

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Definitions:

Cytoplasm

The gel-like substance within a cell, excluding the nucleus, that contains organelles and is the site of various vital metabolic processes.

Cell Membrane

The semipermeable membrane surrounding the cytoplasm of a cell, managing the entry and exit of substances.

Filtration

A process that separates particles from a fluid (liquid or gas) by passing the fluid through a filter medium that only allows the fluid to pass through.

Metabolism

The set of life-sustaining chemical reactions in organisms for converting food to energy, repairing cells, and discarding waste.