Generate KERALA UNIVERSITY Class 3 solid state devices Question Paper

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• 302 ; SOLID STATE DEVICES (TA) (2008 Scheme) Time : 3 Hours Max. Marks : 100 PART - A Answer all questions. Each question carries 4 marks:
• Explain effective mass?
• Dilferentiale between drift and diffusion in a semiconductor.
• Consider a N-lype Silicon. If it is doped with $2 \times 10^{15} / \mathrm{cm}^{-2} \mathrm{P}$ aloms, find majorily and minorily concentration in the semiconductor at room lemperalure?
• Show that there exists no gradient in Fermi revel in a semiconductor, irrespective of the doping in the semiconductor?

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