Rankers Physics

Properties of Semiconductors: Practice Problem & Solution

Intrinsic semiconductor is electrically neutral. Extrinsic semiconductor having large number of current carriers would be :
Positively charged
Negatively charged
Positively charged or negatively charged depending upon the type of impurity that has been added
Electrically neutral

Solution Explained:

To solve this problem, we apply the core principles of Properties of Semiconductors. Understanding the underlying formula is key to arriving at the correct answer below:

An extrinsic semiconductor with a large number of current carriers is still electrically neutral overall because the total number of positive and negative charges remains balanced.

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