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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What are the three main currents in a junction transistor?
π‘ Hint: Think about the names of the transistor terminals.
Question 2
Easy
In a BJT, if I_B = 2 mA and Ξ² = 50, what is I_C?
π‘ Hint: Use the formula I_C = Ξ² * I_B.
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 formula for calculating collector current in a BJT?
- I_C = I_E + I_B
- I_C = Ξ² * I_B
- I_C = I_B - I_E
π‘ Hint: Focus on how the base current affects the collector current.
Question 2
True or False: The emitter current is always greater than the collector current in a BJT.
- True
- False
π‘ Hint: Consider how currents add up at the emitter.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a BJT has a current gain of 200 and a base current of 0.1 mA, calculate the I_C, I_E, and what could happen to I_C if I_B is reduced by half.
π‘ Hint: Apply the relationships we discussed and remember how changes affect output.
Question 2
A particular BJT circuit needs to switch under very low base current. If I_B drops to 0.2 mA with a Ξ² value of 50. Determine I_C and implications for the circuit if the devices are designed for 30 mA.
π‘ Hint: Evaluate if the base current is sufficient for the collector needs.
Challenge and get performance evaluation