Which of the following is an application of plastic as a poor conductor of heat?

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Insulating electrical wires

Cooking utensils

Heat sinks in electronic devices

Automotive parts

answer is A.

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Detailed Solution

Plastic is a poor conductor of heat, which makes it a suitable material for insulating electrical wires.
Insulating materials are used to prevent the flow of electricity from one wire to another.
This prevents electrical current from escaping from the wire and causing electric shock or fire.
Cooking utensils and automotive parts require materials that are good conductors of heat to efficiently transfer heat from the heat source to the food or the engine.
Heat sinks in electronic devices are designed to absorb and dissipate heat, which requires a material with high thermal conductivity, making plastic unsuitable for these applications.

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