Practice Forward And Reverse Biasing (8.3.2) - Revisiting BJT Characteristics (Contd.) - Part A

Practice: Forward and Reverse Biasing

Lesson 8.3.2Revisiting BJT Characteristics (Contd.) - Part A

Practise this section

9 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What happens when a BJT is forward biased?
Show hintHide hint
Think about the movement of charge carriers in the transistor.
Question 2.
Define reverse bias.
Show hintHide hint
Consider what happens to the depletion region.
3Question 3.
What is the effect of forward bias on junction current?
- It reduces current
- It allows current to flow freely
- It blocks current
Show hintHide hint
Think about the structure of the junction.
4Question 4.
True or False: In reverse bias, the collector current flows freely.
- True
- False
Show hintHide hint
Consider the impact of the depletion region.
Question 5.
If a BJT has a forward bias voltage of 0.7V and the saturation current is 10 microamps, derive the collector current at this voltage assuming exponential behavior.
Show hintHide hint
Identify what I_S and the exponential factor would imply.
Question 6.
Calculate how a decrease in base width to half affects the transistor's current gain assuming all other variables remain constant.
Show hintHide hint
Consider the relationship between base width and carrier life.

5 more questions in this section. Enroll free to practise them all.