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Which situation would most likely occur if a regular extension cord were substituted for a heavy-duty cord?

When electricity passes through a wire, there is a resistance to the flow of current. This resistance causes wires or any other conductors of electricity to heat up. The chart below summarizes the relationship between wire diameter and length and the flow of electricity.

A heavy-duty extension cord is made of a thicker wire than a regular extension cord and is recommended for appliances that draw considerable current, such as air conditioners and power tools.

Which situation would most likely occur if a regular extension cord were substituted for a heavy-duty cord?
A . not allow electric current to pass through it
B . become too cold and freeze
C . not work well in indoor conditions
D . overheat and become a fire hazard
E . break while in use

Answer: D

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