| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
A diode to an electronic circuit is like a _______________ to a city?
parking lot |
|
one-way street |
|
traffic light |
|
highway |
A diode allows current to pass easily in one direction and blocks current in the other direction.
A capacitor to an electronic circuit is like a _______________ to a house?
safe |
|
driveway |
|
storage shed |
|
gate |
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.
Capacitors store:
current |
|
resistance |
|
capacitance |
|
electricity |
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.
Which of the following is not a terminal on a transistor?
emitter |
|
input |
|
base |
|
collector |
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.
The valence shell of a semiconductor is how full of electrons?
empty |
|
more than half full |
|
half full |
|
less than half full |
Semiconductors have valence shells that are exacly half full and can conduct electricity under some conditions but not others. This property makes them useful for the control of electrical current.