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Sagar Kumar Biswal posted an Question
January 19, 2021 • 23:12 pm
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30 points
30 points
- IIT JAM
- Physics (PH)
In an experiment, the resistance of a rectangular slab of a semiconductor is measured as a function of temperature. the semiconductor shows a resistance of 3002
In an experiment, the resistance of a rectangular slab of a semiconductor is measured as a function of temperature. The semiconductor shows a resistance of 3002 at 200 K and 22 at 250 K. Its energy band gap is [Given: In(15) 2.708, In(10) =2.303 (b) 0.431 e (d) 0.862 el |JAM PH-20111 (a) 0.138 eV (c) 0.690 e
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Rohit kumar gupta
hope this will helps to understand
In resistance expression rho is resistivity and in semiconductor expression rho is concentration of charge careers. How can you relate them ? They are different things. And furthermore it varies as (- Eg/2kT ). Thanks for considering the question but I think it's the wrong way
resisitivity can be express in terms of number of electrons that is concentration
all constant terms will cancel out this is the only way to slove this problem