Question 213: Current Electricity

Question

Which of the following resistivity ( $\rho$ ) $\mathrm{v} / \mathrm{s}$ temperature ( T ) curves is most suitable to be used in wire bound standard resistors?

Accepted Answer

We use Nichrome, manganin and constantan to make standard (reference) wire bound resistors their resistivity is less dependent on temperature. So $\rho$ vs T curve will not show any sharp change.
Hence, option 4 is correct.

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Current Electricity

Which of the following resistivity ( \rho ) \mathrm{v} / \mathrm{s} temperature ( T ) curves is most suitable to be used in wire bound standard resistors?

Choose the correct answer: