Question
Which of the following is NOT an insulator?
The correct answer is
Gold
Understanding Insulators vs. Conductors
An insulator is a material that does not easily allow electricity (or heat) to flow through it. In contrast, a conductor allows electricity to flow easily.
Analyzing the Options
Let's examine each material:
- Glass: Typically used as an electrical insulator due to its high resistance to electrical current.
- Gold: A metal known for its excellent electrical conductivity. It allows electricity to pass through it readily.
- Wood: Generally acts as an insulator, especially when dry. Its electrical conductivity is very low.
- Mica: A mineral widely recognized for its superior electrical insulating properties, even at high temperatures.
Identifying the Non-Insulator
Based on the properties of these materials:
- Glass is an insulator.
- Wood is an insulator.
- Mica is an insulator.
- Gold is a conductor, meaning it is NOT an insulator.
Therefore, Gold is the material listed that is not an insulator.
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Important Questions from Conductors and Insulators
Empire tape is usually made of ______.
- Which of the following insulating materials has the lowest dielectric losses?
Which material has the highest electrical conductivity?
Considering the distinct primary mechanisms governing charge transport, how does an increase in ambient temperature typically affect the electrical resistance of a pure metallic conductor compared to an intrinsic semiconductor?
At low temperature, lead behaves as a
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