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- 1. Multiple Choice
Transistors act like tiny "____________."
Electron sources
Switches
Batteries
Bees?
- 2. Multiple Choice
What are the names of the terminals X, Y and Z?
X = Base, Y = Collector, Z = Emitter
X = Emitter, Y = Base, Z = Collector
X = Collector, Y = Base, Z = Emitter
X = Collector, Y = Emitter, Z = Base
- 3. Multiple Choice
As well as acting like a switch, another function of the transistor is to____________signals?
rectify
amplify
limit
control
- 4. Multiple Choice
transistor has 3 electrodes namely
PNP
NPN
Base/ Collector/ Emitter
Drain/ Gate/ Source
- 5. Multiple ChoiceEmits light when a current passes through itfusediodeLEDresistor
- 6. Multiple Choice
A transistor is a …………… operated device
Voltage
Both Voltage and Current
Current
None of the Above
- 7. Multiple Choice
The shorter leg of an LED is what?
Positive
Negative
- 8. Multiple Choice
Before transistors, these were used as amplifiers and switches, what are they?
Vacuum Tubes
Variable Bulbs
Gas Switches
Logic Tubes
- 9. Multiple Choice
What family is the transistor part of?
LED
Diode
Semiconductor
Resistor
- 10. Multiple Choice
In what year was the transistor invented?
1948
1950
1958
1946
- 11. Multiple Choice
Where was it invented?
Bell Labs
Draper Labs
MIT
WPI
- 12. Multiple Choice
What is this pin called with the arrow?
Emitter
Base
Collector
Transistor
- 13. Multiple Choice
What is this pin called with the arrow?
Emitter
Base
Collector
Transistor
- 14. Multiple Choice
What is this pin called with the arrow?
Emitter
Base
Collector
Transistor
- 15. Multiple Choice
What is the difference between a PNP and NPN?
Emitter arrow direction
Base is different
Collector is on the other end
Nothing, they are the same
- 16. Multiple Choice
What is this?
Vacuum Tube
Transistor
Circuit
Star Wars Character
- 17. Multiple Choice
A PWM Signal is generated using digital pulses
True
False
- 18. Multiple Choice
The duty cycle in a PWM signal is
The percentage of ON time over the time period
The percentage of OFF time over the time period
The total (ON and OFF) time over the time period
None of the above
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