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WorksheetsTransistors Quiz
Total questions: 5
Worksheet time: 4mins
Complete the following sentence about semiconductors. N-type semiconductors have ______ electrons available to conduct. P-type semiconductors have a structure where there are absences of ______ in the bonding between atoms.
additional, electrons
fewer, protons
extra, neutrons
missing, ions
Which statement describes the forward current gain of an NPN transistor?
The difference between the emitter current and the collector current
The collector current divided by the base current
The emitter current divided by the collector current
The collector current divided by the base current
The circuit diagram shows a transistor-based circuit. What will happen when the toggle switch is moved to connect R1 to the base of the transistor? Choose all the statements that are true.
Current will flow between the base and emitter of TR1.
The LED will light.
A smaller current will flow through R2 than R1.
The current flowing into the base will equal the current flowing through R2.
The graph shows the relationship between the base current and the base-emitter voltage for an NPN transistor. Match each region on the graph to the mode of operation of the transistor.
Cut-off region
Active region
Saturation region
Reverse-active region
Two students are discussing the structure of a MOSFET. Student A says that a larger charge on the gate will constrict the conducting channel between drain and source. Student B says that once the gate is charged, no current will flow through it. Who is correct?
Student A only
Student B only
Both students
Neither student
