| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.23 |
| Score | 0% | 65% |
Using a fuse with a current rating higher than that required by a circuit:
is recommended |
|
is required |
|
makes no difference |
|
makes the circuit less safe |
A fuse is a type of low resistance resistor that stops current flow in a circuit in response to a larger than intended electric current flow. Using a fuse with a higher current rating than required by a circuit is less safe as it could potentially allow overcurrent and risk a fire or heat-related equipment damage.
An engineer who wants to document an electric circuit would create which of the following?
a layout |
|
a schematic |
|
a matrix |
|
a blueprint |
A schematic is the proper name for a drawing of an electric or electronic circuit.
The valence shell of a conductor is how full of electrons?
half full |
|
full |
|
more than half full |
|
less than half full |
Conductors are elements that allow electrons to flow freely. Their valence shell is less than half full of electrons that are able to move easily from one atom to another.
A diode to an electronic circuit is like a _______________ to a city?
highway |
|
one-way street |
|
traffic light |
|
parking lot |
A diode allows current to pass easily in one direction and blocks current in the other direction.
Why is an insulator a poor conductor of electricity?
an insulator is made of inorganic material |
|
an insulator has many free electrons |
|
an insulator is made of organic material |
|
an insulator has few free electrons |
Insulators have valence shells that are more than half full of electrons and, as such, are tightly bound to the nucleus and difficult to move from one atom to another.