Practice Indian Institute of Technology, Kharagpur - 8.1.3 | 8. Revisiting BJT Characteristics (Contd.) - Part A | Analog Electronic Circuits - Vol 1
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8.1.3 - Indian Institute of Technology, Kharagpur

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What happens to current in the BJT under forward bias?

πŸ’‘ Hint: Think about how voltage affects current flow.

Question 2

Easy

What is the primary characteristic of reverse bias?

πŸ’‘ Hint: Consider what happens at the junction when voltage is applied in this manner.

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 increasing the base-emitter voltage on the collector current in a BJT?

  • A. It decreases the collector current.
  • B. It increases the collector current exponentially.
  • C. It has no effect.

πŸ’‘ Hint: Reflect on the relationship between voltage and current in the active region.

Question 2

True or False: The collector current in reverse bias is not influenced by the applied voltage.

  • True
  • False

πŸ’‘ Hint: Consider the stability of current flow against increasing reverse voltages.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

If a transistor operates with a collector-emitter voltage of 10V and a base-emitter voltage of 0.7V, find the expected base current given that the base-emitter current is 1 mA and the base width is 0.2ΞΌm.

πŸ’‘ Hint: Explore how changing one parameter influences the others along with the supporting equations.

Question 2

Design a BJT circuit to achieve maximum Ξ² while minimizing recombination losses. What factors must be considered?

πŸ’‘ Hint: Consider physical adjustments in design, such as narrowing the base width and adjusting doping levels.

Challenge and get performance evaluation