Practice Mass Action Law - 1.8 | 1. Introduction to Semiconductor Physics | Electronic Devices 1
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the Mass Action Law state about intrinsic semiconductors?

💡 Hint: Think about how the charge carriers interact in an intrinsic semiconductor.

Question 2

Easy

Define intrinsic carrier concentration.

💡 Hint: It’s a key characteristic of intrinsic semiconductors.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the mathematical expression of the Mass Action Law?

💡 Hint: Look for the equation relating n and p to ni.

Question 2

True or False: The Mass Action Law only applies to n-type semiconductors.

  • True
  • False

💡 Hint: Remember that it relates to intrinsic conditions.

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Challenge Problems

Push your limits with challenges.

Question 1

An intrinsic semiconductor has an electron concentration of 2 × 10^10 cm⁻³ at room temperature. Calculate the hole concentration and explain your reasoning based on the Mass Action Law.

💡 Hint: Ensure you know how to rearrange the Mass Action Law equation.

Question 2

Given that doping a semiconductor with phosphorus increases the electron concentration to 5 × 10^10 cm⁻³, calculate the new hole concentration if ni remains constant at 1 × 10¹⁰ cm⁻³.

💡 Hint: Use the Mass Action Law and remember how doping changes the distribution of carriers.

Challenge and get performance evaluation