| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.91 |
| Score | 0% | 58% |
The hertz is a unit of measurement for:
energy |
|
power |
|
frequency |
|
inductance |
The hertz is a unit of measurement for frequency.
| 45V 75A | |
| 90V 15A | |
| 10V 135A | |
| 9V 150A |
Connecting the 10 batteries in series multiplies their voltage while keeping their current the same yielding a 90V 15A configuration. Connecting the 10 batteries in parallel multiplies their current while keeping their voltage the same yielding a 9V 150A configuration. Using a series-parallel connection, 5 batteries can be connected in series and 5 can be connected in parallel resulting in a 45V 75A configuration.
The valence shell of a conductor is how full of electrons?
more than half full |
|
less than half full |
|
full |
|
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.
Electromotive force is another name for:
current |
|
voltage |
|
energy |
|
power |
Voltage (V) is the electrical potential difference between two points. Electrons will flow as current from areas of high potential (concentration of electrons) to areas of low potential. Voltage and current are directly proportional in that the higher the voltage applied to a conductor the higher the current that will result.
What is the voltage of most household electrical systems in the United States?
60Hz |
|
220V |
|
110V |
|
60V |
Most households use electricity with a voltage of 110V.