A) DE
B) CD
C) BC
D) AB
Correct Answer: B
Solution :
Key Idea: Negative resistance means the resistance which decreases when temperature or voltage increases. From Ohms law, resistance \[R=\frac{\Delta V}{\Delta I}\] Resistance is said to be negative, if an increasing voltage or temperature, current decreases. In V-I graph, for portion CD of graph, the current decreases with increasing voltage. Thus, portion CD corresponds to negative resistance.You need to login to perform this action.
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