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Question

Select conductor of heat from the following


A

Paper

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B

Aluminum

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C

Plastic

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D

Rubber

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Solution

The correct option is B

Aluminum


Conductors

  1. Conductors are materials that allow electrons to easily flow from one particle to the next.
  2. Electric current can freely flow in a conductor, but not in an insulator.
  3. Conductors are metals like copper, while most non-metallic solids are believed to be good insulators.

The explanation of the correct option

In the case of option B

  1. Aluminum is a heat conductor. Aluminum is an excellent heat and electricity conductor that is about twice as good as copper in terms of weight. Because of the metallic links between atoms, we can see that the valence electrons are already disengaged in metals.

The explanation of the correct option

In the case of option A

  1. Conductors allow free flow of electricity through them. Insulators, however, do not. Copper and other metals are great conductors.
  2. Paper, on the other hand, functions as an insulator by resisting the flow of Heat.

In the case of option C

  1. Because plastics are poor electrical conductors, they are employed as insulators on wires and in other applications.
  2. For reasons other than cost, plastics are likely to make up the majority of current electronics packaging.

In the case of option D

  1. Rubber acts as a heat and sound insulation. Insulators are compounds that prevent current from flowing through them.

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