WorksheetsSemiconductors and Diode Theory
Total questions: 20
Worksheet time: 10mins
Materials that doesn't allow flow of electrons
Conductor
Insulator
Semiconductor
Semi-insulator
Gap in energy between the bound state and the free state, between the valence band and conduction band.
Energy Gap
Conduction Gap
Valence Gap
Electron Gap
In forward bias, the diode's anode is connected to the:
Negative terminal
Ground
Positive terminal
Open terminal
Which diode emits light?
Zener Diode
LED
Tunnel Diode
Schottky Diode
What component converts AC to DC?
Resistor
Capacitor
Diode
Transformer
A transformer works on the principle of:
Ohm's Law
Magnetic Resonance
Electromagnetic Induction
Electric Field
What kind of signal is output from a full-wave rectifier?
Pure AC
Constant DC
Pulsating DC
Zero Voltage
The main purpose of a filter in power supplies is to:
Block Current
Increase Voltage
Reduce Ripple
Control Temperature
Which diode is used for voltage regulation?
Zener Diode
LED
Tunnel Diode
Varactor Diode
What does a capacitor store?
Current
Magnetic Field
Voltage
Resistance
What happens to current flow in a diode when reverse-biased?
Increases rapidly
Zero current
Small leakage current
Acts like a resistor
The peak inverse voltage (PIV) of a diode is:
The maximum forward voltage
The average voltage
The maximum reverse voltage it can withstand
Zero volts
In a full-wave rectifier, how many diodes are used in a bridge configuration?
1
3
4
6
Which diode is best suited for high-speed switching applications?
Zener Diode
Tunnel Diode
Schottky Diode
Photodiode
The output of a half-wave rectifier contains:
Pure DC
DC with high ripple
AC only
No Voltage
A photodiode operates when exposed to:
Heat
Voltage
Light
Sound
Ripple voltage in a power supply is:
The output DC Voltage
The voltage loss in the diode
The residual AC component
The reverse breakdown voltage
Which circuit removes a portion of the input signal without altering the remaining part?
Clamper
Amplifier
Rectifier
Clipper
Which configuration uses both positive and negative halves of the AC cycle?
Half-Wave Rectifier
Zener Regulator
Full-Wave Rectifier
LED Array
A clamper circuit is used to:
Regulate Voltage
Cut-off Signal Levels
Shift the DC level of a signal
Increase Frequency
