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The n-type semiconductor is which of the following?(a) Positively charged(b) Negatively charged(c) Neutral(d) Positive or negative depending upon doping materialsI got this question by my school teacher while I was bunking the class.My doubt is from Extrinsic Semiconductor in chapter Semiconductor Electronics : Materials, Devices and Simple Circuits of Physics – Class 12

Answer»

Correct choice is (c) Neutral

To elaborate: Semiconductors MAINTAIN their ELECTRICAL NEUTRALITY even after doping. This is achieved by adding an impurity to a PURE SEMICONDUCTOR in order to obtain an n-type semiconductor.



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