Chapter 2 diodes
A diode used to convert ac into pulsating dc is called a _ .
rectifier
A forward-biased diode act like a switch that is _ .
Closed
A PN junction Diode can be formed by pressing N-Type and P-Type materials together. T/F
False
Germanium and Silicon diodes cannot be damaged by excessively high reverse voltages since no current flows. T/F
False
The reverse current is usually higher in silicon diodes. T/F
False
The construction technique which allows a pellet of idium to be fused to a semiconductor crystal is referred to as _ method.
Alloyed
The cathode end of a diode may be identified by a _ at one end of the device.
Band
A component most often used to filter a pulsating dc into pure dc is a _ .
Capacitor
When a PN junction is formed, a _ region is created in the area of the junction.
Depletion
The construction technique which allows a gaseous impurity element to penetrate a semiconductor wafer is referred to as the _ method.
Diffusion
Electrically charged atoms are referred to as _ .
Ions
An understanding of diode operation can only be obtained by examining the action which takes place at the _ of the diode.
Junction
A small reverse current that flows through a reverse-biased diode is sometimes called a _ current.
Leakage
A diode is formed by joining _ _ and _ _ semiconductor materials.
N-Type P-Type
A reverse-biased diode acts like a switch that is _ .
Open
The grown method of PN junction formation utilizes a _ crystal which is dipped into a molten mixture of semiconductor materials and then withdrawn.
Seed
The P section of a diode is represented by a triangle/arrow in the diode symbol. T/F
True
The V-I characteristic curves of silicon and germanium diodes are similar. T/F
True
The abbreviation PIV stands for Peak Inverse Voltage. T/F
True
The depletion region is neutralized when the diode is forward biased. T/F
True
A transformer, a rectifier diode and a filter are combined to form a circuit called a _ .
power supply