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15
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What two main jobs can a transistor do in an electronic circuit?
Act as a switch and as an amplifier.
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20
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In what year was the transistor invented?
1978
1995
1947
1921
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15
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What material are most transistors made from?
Silicon
Borus
Phosphorus
Tungsten
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15
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Why are billions of transistors able to fit inside a modern microchip?
Because transistors are extremely small and made using advanced manufacturing techniques.
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monster
Reset all scores!
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magnet
Take 10 points!
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gift
Win 15 points!
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lifesaver
Give 25 points!
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15
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What are the two main types of transistors used today?
BJT (Bipolar Junction Transistor) and MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor).
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15
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Why was the invention of the transistor considered a revolution for electronics?
Because transistors are smaller, cheaper, faster, more reliable, and use less power than vacuum tubes.
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banana
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star
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fairy
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25
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thief
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5
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25
15
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What are the three main parts (terminals) of a bipolar junction transistor (BJT)?
Emitter, Base, Collector.
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heart
Other team wins 10 points!
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shark
Other team loses 20 points!
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shark
Other team loses 25 points!
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baam
Lose 10 points!
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15
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Before transistors were invented, what device was commonly used to amplify and switch signals?
Vacuum tubes
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25
×
What is the basic difference between a BJT and a MOSFET?
A BJT is current-controlled, while a MOSFET is voltage-controlled.
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10
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Name one advantage of transistors compared to vacuum tubes.
They are smaller, use less energy, produce less heat, or last longer.
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10
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Give one everyday device that would not work without transistors.
smartphones, computers, TVs, radios, calculators, cars.
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15
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What does the word โsemiconductorโ mean?
A material that conducts electricity sometimes, not as well as metals but better than insulators.
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seesaw
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seesaw
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rocket
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banana
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