Question

Choose the conductor from the following options.

• A. Glass
• B. Wood
• C. Plastic
• D. Tungsten

Answer 1

The correct option is D

Tungsten

Step 1: Explanation of the correct option

In the case of option D,

1. A conductor is a substance or material that permits the flow of electricity.
2. Metals have a significant number of free valence electrons, making them good conductors of electricity.
3. Tungsten is a good conductor of electricity since it is a metal.

Step 2: Explanation for the incorrect options

In the case of option A,

1. Glass cannot conduct electricity because there are no free electrons in the glass. Hence it is not a conductor.
2. Glass is an electric insulator. Electric insulators are substances that do not allow electricity to flow through them.

In the case of option B,

1. Wood is an insulator, not a conductor.
2. Insulators are materials that prevent electrons from freely flowing from one element's particle to another.

In the case of option C,

1. Plastics are a broad category of synthetic or semi-synthetic materials made primarily of polymers.
2. Plastic is not a conductor because it does not allow the electricity to pass through it.

Hence, option D is the correct answer.