Question

The graph below shows two conductivity curves with respect to temperature of a germanium semiconductor. In one case, there is dopant added to the sample, and in the other there is none. Using some or all of the labels below, please drag and drop the labels to their correct destination to identify each curve and the appropriate regions.

Answer 1

In the order from the left to the right of the graph, the solutions is:
1. Contains dopant (on the left)
2. Extrinsic region
3. No dopant present
4. Intrinsic region (on the right)

Answer 2

wrong

Answer 3

it's all right
thanx ))

Answer 4

which one goes on the top?