Practice Junction Transistor (BJT) - 9.7 | Chapter 9: Electronic Devices | ICSE Class 12 Physics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What are the three parts of a BJT?

πŸ’‘ Hint: Think of the structure of a tree.

Question 2

Easy

What does the Emitter do in a BJT?

πŸ’‘ Hint: It's the part where current enters.

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 are the modes of operation of a BJT?

  • Active
  • Standby
  • Off
  • Active
  • Cut-off
  • Saturation
  • On
  • Off
  • Idle

πŸ’‘ Hint: Remember the three states we discussed.

Question 2

True or False: In Cut-off mode, a BJT amplifies signals.

  • True
  • False

πŸ’‘ Hint: Think about whether current flows.

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Challenge Problems

Push your limits with challenges.

Question 1

A BJT with beta = 50 and a base current of 5 mA is in active mode. Calculate the Emitter and Collector currents.

πŸ’‘ Hint: Use the current relations we've discussed.

Question 2

You have a circuit where the BJT operates in saturation mode. Describe your observations about the Collector current and the other currents.

πŸ’‘ Hint: Consider what happens to the current flow when both junctions are forward biased.

Challenge and get performance evaluation