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WorksheetsElectronics: Semiconductor Quiz
Total questions: 10
Worksheet time: 25mins
Doping is a process of adding a certain amount of specific impurities to semiconductor. What is the purpose of doping?
To increase the resistance of semiconductor
To increase the thermal energy of semiconductor
To increase the temperature of the semiconductor
To increase the conductivity of the semiconductor
Diagram 9 shows three electrical circuit with different components P, Q and R connected across terminal X and Y. Table shows the condition of the bulb before and after the terminals of battery is reversed. What are the components for P Q and R?
P: Capacitor
Q: Resistor
R: Diode
P: Diode
Q: Capacitor
R: Resistor
P: Resistor
Q: Diode
R: Capacitor
P: Capacitor
Q: Diode
R: Resistor
A cathode ray oscilloscope (CRO) is connected in a circuit as shown in Diagram 10. Which of the following trace is produced by the Cathode Ray Oscilloscope screen in the circuit?
Diagram 11 shows a circuit with a bulb that does not light up. Which of the following actions will make the bulb light up?
Connecting a fuse to the circuit
Reversing the battery connection
Changing the power supply to a 3V battery
Reversing the bulb connection
Which of the following circuits will light up the bulb?
A
B
C
D
Diagram 12 shows the arrangement of silicon atoms after an atom X is doped to form an extrinsic semiconductor. Which of the following is true?
The conductivity of the semiconductor decreases.
The semiconductor becomes a p-type.
The majority charge carrier is electron.
Atom X is a trivalent atom
Diagram 13 shows five identical bulbs P, Q, R, S and T in a circuit. Which bulbs light up continuously when the switch is on?
P, Q and T only
Q and S only
R and S only
P and R only
Which of the following circuits shows the forward-biased arrangement of a diode?
A
B
C
D
What is the function of a diode?
Acts as a current amplifier
Acts as an automatic switch
Stores electric charge
Allows the current to pass in one direction only
Diagram 14 shows a full-wave rectification circuit. Which one of the possible paths of current flow?
T→P→Q→V→W→S→R→U
T→P→S→W→V→Q→P→T
U→R→S→P→Q→V→W→S→P→T
U→R→Q→V→W→S→R→U
