Practice Photodiode (2.10) - PN Junction Diode and Applications

Practise this section

8 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
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is a photodiode?
Show hintHide hint
Think about devices that react to light.
Question 2.
In which condition do photodiodes usually operate?
Show hintHide hint
Consider how biasing affects diode behavior.
3Question 3.
What is the primary function of a photodiode?
- Generate heat
- Convert light into current
- Store energy
Show hintHide hint
Think about how light interacts with semiconductors.
4Question 4.
True or False: Photodiodes typically operate in forward bias.
- True
- False
Show hintHide hint
Recall the biasing behavior discussed.
Question 5.
A photodiode emits a current of 5 mA at a light intensity of 500 lux. If the intensity is doubled, what will be the new output current assuming linear behavior?
Show hintHide hint
Think about the relationship between intensity and current.
Question 6.
Explain how you would design a light sensor circuit using photodiodes to control lighting in a room. Include components and desired outcomes.
Show hintHide hint
Consider how you'd use feedback to control lighting.

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