We can model the rear window defroster in a car as a
Chapter 22, Problem 21CQ(choose chapter or problem)
Problem 21CQ
We can model the rear window defroster in a car as a resistor that is connected to the car’s 12 V battery. The defroster is made of a material whose resistance increases rapidly as the temperature increases. When the defroster is cold , its resistance is low; when the defroster is warm, its resistance is high. Why is it better to make a defroster with a material like this than with a material whose resistance is independent of temperature? Think about how the resistance, the current, and the power will change as the window warms.
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