engineering recuitment GATE ECE 2023-24 Test Series Electronic Devices Carrier Transport Total Current Density Due To Drift and Diffusion
Consider a semiconductor in thermal equilibrium (no current). Assume that the donor concentration varies exponentially as Nd(x) = Nd0 exp (-αx) over the range 0 ≤ x ≤ 1/α ; where Nd0 is a constant.
The electric field in the range 0 ≤ x ≤ 1/α will be:1
Independent of x
2
Linearly dependent on x
3
zero
4
none of these