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WorksheetsSK1 CH8 - DIODE
Total questions: 10
Worksheet time: 5mins
What is the main property of a semiconductor?
High conductivity
Low conductivity
Medium conductivity
No conductivity
Which element is commonly used in semiconductor devices?
Copper
Silicon
Iron
Aluminum
What is the function of a diode?
Amplify current
Store energy
Control direction of current flow
Convert AC to DC
What happens when a diode is reverse biased?
It conducts current
It blocks current
It doubles voltage
It acts as a resistor
Which diode is used as a voltage regulator?
LED
Zener diode
Schottky diode
Tunnel diode
What type of carriers dominate in P-type semiconductor?
Electrons
Holes
Protons
Neutrons
What is formed when P-type and N-type materials are joined?
Transistor
Diode
Capacitor
Resistor
Which statement is TRUE about Zener diode?
It conducts only in forward bias
It conducts in both directions
It blocks reverse current completely
It is used for rectification only
Why does a diode act like an open circuit in reverse bias?
Because holes move freely
Because depletion region widens
Because voltage becomes zero
Because electrons flow easily
What is the main difference between a normal diode and a Zener diode?
Zener diode has no PN junction
Zener diode allows reverse current under certain conditions
Normal diode conducts in both directions
Zener diode cannot regulate voltage
