Question
Download Solution PDFWhich of the following has the highest value of resistivity?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Nichrome.Key Points
- Resistivity is the measure of how strongly a material opposes the flow of electric current through it.
- Nichrome has the highest value of resistivity among the given options because it is an alloy made of nickel, chromium, and iron, which are all metals with high resistivity.
- Silver has the lowest value of resistivity among the given options because it is a good conductor of electricity due to its low resistivity.
- Chromium has a higher value of resistivity than iron because it is a more brittle metal and has a higher melting point.
- Iron has a lower value of resistivity than nichrome because it is a good conductor of electricity and has a lower resistance to the flow of electric current.
Additional Information
- Silver is a good conductor of electricity and is often used in electronics and electrical wiring due to its low resistivity.
- Nichrome is commonly used in heating elements, as it has a high resistivity and can withstand high temperatures.
- Chromium is used in the production of stainless steel, as it has a high resistance to corrosion and oxidation.
- Iron is used in construction, machinery, and transportation due to its strength and durability.
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