Diode and LEDs
Professional Development
•12 Qs
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Diode and LEDs
Quiz
•
Science
•
Professional Development
•
Medium
William Tan
Used 4+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which 2 are common semiconductor materials?
Silicon
Germanium
Aluminium
Gold
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ge and Si atoms have _____ valence electrons.
1
2
4
8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Doping with pentavalent (donors) impurities give ______ semiconductor.
N-type
P-type
A-type
B-type
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which impurity gives more holes than free electrons?
Aluminium
Antimony
Arsenic
Phosphorus
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This is a _______ semiconductor.
N-type
P-type
A-type
B-type
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which one is symbol of diode?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the barrier (forward) voltage of silicon diode?
0.3V
0.7V
1.2V
5V
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