| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.46 |
| Score | 0% | 69% |
Which of the following allows DC to pass easily but resists the flow of AC?
capacitor |
|
transformer |
|
semiconductor |
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inductor |
An inductor is coiled wire that stores electric energy in the form of magnetic energy and resists changes in the electric current flowing through it. If current is increasing, the inductor produces a voltage that slows the increase and, if current is decreasing, the magnetic energy in the coil opposes the decrease to keep the current flowing longer. In contrast to capacitors, inductors allow DC to pass easily but resist the flow of AC.
A diode to an electronic circuit is like a _______________ to a city?
highway |
|
parking lot |
|
traffic light |
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one-way street |
A diode allows current to pass easily in one direction and blocks current in the other direction.
| 783 W | |
| 2340 W | |
| 702 W | |
| 780 W |
If an electrical circuit is interrupted, which of the following will result?
parallel circuit |
|
closed circuit |
|
open circuit |
|
short circuit |
A closed circuit is a complete loop or path that electricity follows. It consists of a source of voltage, a load, and connective conductors. If the circuit is interrupted, if a wire is disconnected or cut for example, it becomes an open circuit and no electricity will flow.
The joule is a unit of measurement for:
capacitance |
|
resistance |
|
power |
|
energy |
The joule is a unit of measurement for energy.