Specific resistance of copper, constantan and silver are $1.78\,\, \times \,\,{10^{ - 8}},\,\,39.1\,\, \times \,\,{10^{ - 8}}\,\,{\rm{and}}\,\,{10^{ - 8}}\,\,{\rm{\Omega - m }}$ respectively. Which of these is the best conductor of heat and electricity?

NEET UG PHYSICS MCQ: CURRENT ELECTRICITY

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Specific resistance of copper, constantan and silver are

1.78\,\, \times \,\,{10^{ - 8}},\,\,39.1\,\, \times \,\,{10^{ - 8}}\,\,\mathrm{and}\,\,{10^{ - 8}}\,\,\mathrm{\Omega - m }

respectively. Which of these is the best conductor of heat and electricity?

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Correct option: C

Silver

Option C (Silver) is correct because silver has the lowest specific resistance among the given materials, making it the best conductor of heat and electricity.

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