| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.30 |
| Score | 0% | 66% |
A diode to an electronic circuit is like a _______________ to a city?
parking lot |
|
one-way street |
|
highway |
|
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?
v-type diode |
|
standard diode |
|
light emitting diode |
|
zener 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.
A transformer utilizes an inductor to increase or decrease what in a circuit?
current |
|
load |
|
resistance |
|
voltage |
A transformer utilizes an inductor to increase or decrease the voltage in a circuit. AC flowing in a coil wrapped around an iron core magnetizes the core causing it to produce a magnetic field. This magnetic field generates a voltage in a nearby coil of wire and, depending on the number of turns in the wire of the primary (source) and secondary coils and their proximity, voltage is induced in the secondary coil.
| 2700 W | |
| 3000 W | |
| 2996 W | |
| 3009 W |
This circuit component symbol represents a(n):
diode |
|
inductor |
|
transformer |
|
transistor |
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.