Question

() On the basis of electron drift, derive an expression for resistivity of a conductor in terms of the number
density of free electrons and relaxation time. On what factors does resistivity of a conductor depends?
(ii) Why alloys like constantan and manganin are used for making standard resistors?​

Answer 1

Answer:

the basis of electron drift, derive an expression for resistivity of a conductor in terms of the number

density of free electrons and relaxation time. On what factors does resistivity of a conductor depends?

(ii) Why alloys like constantan and manganin are used for making standard resistors?