Practice Injection and Recombination Currents - 8.4.3 | 8. Revisiting BJT Characteristics (Contd.) - Part A | Analog Electronic Circuits - Vol 1
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8.4.3 - Injection and Recombination Currents

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What happens to the minority carrier concentration in a BJT during forward bias?

💡 Hint: Relate this to the definition of forward bias.

Question 2

Easy

Define injection current in a BJT.

💡 Hint: Think about the flow direction in forward bias.

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 effect of forward bias on minority carrier concentration?

  • It decreases.
  • It remains constant.
  • It increases.

💡 Hint: Think about how biasing influences carriers.

Question 2

True or False: The recombination current is independent of carrier concentration.

  • True
  • False

💡 Hint: Reflect on the relationship between availability and recombination.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Calculate the impact on collector current if the base-emitter voltage is increased from 0.7V to 0.8V while keeping the characteristics of the BJT constant.

💡 Hint: Use the exponential relationship of current with voltage in your calculations.

Question 2

In a lab experiment, the recombination current was measured to be 5 μA while the injection current was 20 μA. Determine the net effect these currents will have on the base current.

💡 Hint: Focus on the concept of how injection and recombination balance out in the calculations.

Challenge and get performance evaluation