| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.19 |
| Score | 0% | 64% |
| 1980 W | |
| 1802 W | |
| 1800 W | |
| 1801.5 W |
General current flow in a transistor is from __________ to __________.
collector, emitter |
|
base, collector |
|
collector, base |
|
base, emitter |
The transistor is the foundation of modern electronic devices. It is made entirely from semiconductor material (making it a solid state device) and can serve many different functions in a circuit including acting as a switch, amplifier, or current regulator. A transistor works by allowing a small amount of current applied at the base to control general current flow from collector to emitter through the transistor.
A capacitor to an electronic circuit is like a _______________ to a house?
driveway |
|
gate |
|
safe |
|
storage shed |
Capacitors store electricity and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors are often used to maintain power within a system when it is disconnected from its primary power source or to smooth out or filter voltage within a circuit.
A diode to an electronic circuit is like a _______________ to a city?
parking lot |
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highway |
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one-way street |
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traffic light |
A diode allows current to pass easily in one direction and blocks current in the other direction.
What kind of diode allows current to flow in the opposite direction once a certain voltage threshold is reached?
zener diode |
|
light emitting diode |
|
standard diode |
|
v-type diode |
A diode allows current to pass easily in one direction and blocks current in the other direction. A zener diode is a diode which allows current to flow in one direction as normal and will also allow current flow in the reverse direction when the voltage is above a certain value. This value is called the breakdown voltage.