What is a semiconductor material?
A Conductor
B Semi-conductor
C Insulator
D Half-conductor
What is the majority carrier in a p-type semiconductor?
A Protons
B Electrons
C Holes
D Neutrons
What is the purpose of doping in semiconductors?
A Control conductivity
B Increase weight
C Increase resistance
D Decrease temperature
What is the energy band gap of a conductor?
A Large
B Undefined
C Zero
D Small
Which current flows due to the movement of electrons in a semiconductor?
A Diffusion current
B Static current
C Hall current
D Drift current
What is a p-n junction?
A Boundary between p-type and n-type materials
B Charge-free junction
C Insulator junction
D Conductive junction
Which of the following devices is used for signal amplification?
A Resistor
B Diode
C Transistor
D Capacitor
What happens when a diode is forward biased?
A It increases resistance
B It conducts current
C It creates a short circuit
D It blocks current
What is the minority carrier in an n-type semiconductor?
A Holes
B Protons
C Neutrons
D Electrons
What is the main purpose of a MOSFET?
A Voltage regulation
B Signal modulation
C Signal amplification
D Signal switching
Which material is commonly used for semiconductor devices?
A Iron
B Copper
C Silicon
D Aluminum
What does the Hall effect measure?
A Magnetic field strength
B Carrier concentration
C Electric current
D Semiconductor doping
What does the band gap determine in a semiconductor?
A Carrier mobility
B Voltage
C Capacitance
D Conductivity
Which transistor type has three layers of semiconductor material?
A IGBT
B MOSFET
C BJT
D FET
What is the main function of a solar cell?
A Amplify signals
B Convert light to electrical energy
C Generate heat
D Store energy