| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.23 |
| Score | 0% | 65% |
A diode to an electronic circuit is like a _______________ to a city?
one-way street |
|
traffic light |
|
parking lot |
|
highway |
A diode allows current to pass easily in one direction and blocks current in the other direction.
From what energy do photovoltaic cells produce electrical energy?
nuclear |
|
magnetic |
|
chemical |
|
sun |
A photovoltaic cell (also known as a solar cell) converts energy from the sun into electrical energy.
Which of the following converts electrical energy into another form of energy in an electrical circuit?
DC source |
|
load |
|
wiring |
|
AC source |
A load is a source of resistance that converts electrical energy into another form of energy. The components of a microwave, for example, are loads that work together to convert household electricity into radation that can be used to quickly cook food.
This circuit component symbol represents a(n):
transistor |
|
inductor |
|
transformer |
|
diode |
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.
If an electrical circuit is interrupted, which of the following will result?
parallel circuit |
|
short circuit |
|
closed circuit |
|
open 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.