Explain how the resistivity of a conductor depends upon (i) number density ‘n’ of free electrons, and (ii) relaxation time ‘λ’.
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resistivity of a conductor is given by the formula,
p = m/ne^2λ
where m = mass of electron
n = number density of free electron
e = charge on an electron
λ = relaxation time
(1) it is evident from the formula given by equation that the resistivity of a conductor is inversely proportional to the number density 'n' of free electrons
(2) the resistivity of a conductor is inversely proportional to the relaxation time λ
p = m/ne^2λ
where m = mass of electron
n = number density of free electron
e = charge on an electron
λ = relaxation time
(1) it is evident from the formula given by equation that the resistivity of a conductor is inversely proportional to the number density 'n' of free electrons
(2) the resistivity of a conductor is inversely proportional to the relaxation time λ
Answered by
6
resistivity of a conductor is given by the formula,
p = m/ne^2λ
where m = mass of electron
n = number density of free electron
e = charge on an electron
λ = relaxation time
(1) it is evident from the formula given by equation that the resistivity of a conductor is inversely proportional to the number density 'n' of free electrons
(2) the resistivity of a conductor is inversely proportional to the relaxation time λ
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