INTRODUCTION TO LIGHT DEPENDENT RESISTORS (LDR):
FUNCTION, CONSTRUCTION, AND APPLICATIONS IN CIRCUITS
Questions with Correct Solutions
Question:
1. LDR
Answer:
Light Dependent Resistor (or Photoresistor) changes its value of resistance depending on the
amount of light it's exposed to.
Question:
2. Semiconductor
Answer:
Material that can act as conductor or insulator.
Question:
3. Valence Band
Answer:
Lower energy area where electrons are bound to the atom.
Question:
4. Conduction Band
Answer:
High energy area where electrons move freely.
Question:
5. Band Gap
Answer:
Difference in energy between the valence band and the conduction band.
FUNCTION, CONSTRUCTION, AND APPLICATIONS IN CIRCUITS
Questions with Correct Solutions
Question:
1. LDR
Answer:
Light Dependent Resistor (or Photoresistor) changes its value of resistance depending on the
amount of light it's exposed to.
Question:
2. Semiconductor
Answer:
Material that can act as conductor or insulator.
Question:
3. Valence Band
Answer:
Lower energy area where electrons are bound to the atom.
Question:
4. Conduction Band
Answer:
High energy area where electrons move freely.
Question:
5. Band Gap
Answer:
Difference in energy between the valence band and the conduction band.
