Worksheets(Savvas 20.4) Ch. 20.4 Electronic Devices
Total questions: 10
Worksheet time: 5mins
Which type of signal is usually used by an AM radio station?
frequency modulated signal
amplitude modulated signal
digital signal
pulse signal
Digital signals are more reliable than analog signals.
True
False
An image is produced in a cathode ray tube (CRT) when phosphors glow red, green, and blue in response to electron beams.
True
False
A semiconductor is a material that
conducts electricity better than insulators but worse than conductors.
does not conduct electricity at all.
conducts electricity better than conductors.
is a type of metal.
Which type of semiconductor can be made by adding a trace amount of boron to silicon, which attracts electrons to positively charged holes on each boron atom?
p-type semiconductor
n-type semiconductor
Match each solid-state electronic component to its definition.
diode
A solid-state component that combines an n-type and p-type semiconductor
transistor
A solid-state component with three layers of semiconductors
integrated circuit
A thin slice of silicon that contains many solid-state components
Electronic signals carry information through patterns in the controlled flow of electrons through a circuit. Which type of electronic signal can be produced by pulsing current on and off?
analog signal
digital signal
Allows current to flow in only one direction
Resistor
Diode
Capacitor
An electronic device that can be a switch for current or an amplifier for voltage
Resistor
Diode
Capacitor
Transistor
What are examples of semiconductors?
Copper and aluminum
Silicon and germanium
Rubber and glass
Water and air
