the average random or thermal kinetic energy of a conduction electron in copper can be estimated with the formula E=KT, where K is the Bolzmann constant.
(1.38 x10^-23 JK-1) and T is the absolute temperature in kelvin.
a) calculateing the thermal kinetic energy of a conduction electron at 300K i got 4.14 x^10-21j, which is correct.
How, using my answer to (a) can i calculate the random speed (root-mean-square or r.m.s speed).
The mass of an electron is 9.1 x10^-31kg
The answer is (9.5x10^4 m/s) just so you can review your answer.
Thank you
Please show me the formula you used and describe the concept behind it all, because i tried to use Workdone (4.14 x^10-21j) = Velocity/ speed of drift electron x a Coulomb (1.6 x10^-19c)
(1.38 x10^-23 JK-1) and T is the absolute temperature in kelvin.
a) calculateing the thermal kinetic energy of a conduction electron at 300K i got 4.14 x^10-21j, which is correct.
How, using my answer to (a) can i calculate the random speed (root-mean-square or r.m.s speed).
The mass of an electron is 9.1 x10^-31kg
The answer is (9.5x10^4 m/s) just so you can review your answer.
Thank you
Please show me the formula you used and describe the concept behind it all, because i tried to use Workdone (4.14 x^10-21j) = Velocity/ speed of drift electron x a Coulomb (1.6 x10^-19c)
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Set kineitc energy = thermal energy
KT = 1/2 mv^2 ---> v = sqrt(2KT/m) = 9.53x10^4 m/s
KT = 1/2 mv^2 ---> v = sqrt(2KT/m) = 9.53x10^4 m/s
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100000 miles/hour