What is the correct sequence of resistivity of silver, nichrome and glass at room temperature ?

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Q: 2 (CDS-I/2022)
What is the correct sequence of resistivity of silver, nichrome and glass at room temperature ?

question_subject: 

Science

question_exam: 

CDS-I

stats: 

0,190,257,190,109,74,74

keywords: 

{'resistivity': [0, 0, 0, 2], 'silver': [0, 0, 0, 1], 'nichrome': [0, 1, 1, 1], 'glass': [0, 0, 1, 4], 'room temperature': [0, 0, 5, 6]}

The correct sequence of resistivity for silver, nichrome, and glass at room temperature is option 1: Silver < Nichrome < Glass.

Resistivity is a measure of a material`s ability to resist the flow of electric current. It is represented by the symbol ρ and is measured in ohm-meters (Ω·m). A lower resistivity value indicates a higher conductivity and a better ability to conduct electricity.

Silver is known for its high electrical conductivity, making it an excellent conductor. Therefore, it has the lowest resistivity among the given options.

Nichrome is a nickel-chromium alloy commonly used in resistance heating elements. It has a higher resistivity than silver but is still a fairly good conductor compared to other materials.

Glass, on the other hand, is an insulator and has a much higher resistivity compared to both silver and nichrome. It does not conduct electricity well and is often used to insulate electrical wires and components.

In summary, the correct sequence is option 1: Silver < Nichrome < Glass, with silver having the lowest resistivity, followed by nichrome, and then glass with the highest resistivity.