| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.79 |
| Score | 0% | 76% |
| orthogonal | |
| parallel | |
| series-parallel | |
| series |
Connecting the 10 batteries in series multiplies their voltage while keeping their current the same yielding a 60V 15A configuration. Connecting the 10 batteries in parallel multiplies their current while keeping their voltage the same yieleding a 6V 150A configuration. Using a series-parallel connection, 5 batteries can be connected in series and 5 can be connected in parallel resulting in a 30V 75A configuration.
| 2394 W | |
| 2160 W | |
| 2404 W | |
| 2400 W |
Which of the following can conduct electricity under some conditions but not others?
conductor |
|
resistor |
|
semiconductor |
|
insulator |
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.
Which of the following is a difference between a circuit breaker and a fuse?
a circuit breaker can be reused |
|
all of these |
|
a fuse responds more quickly than a circuit breaker |
|
a fuse is cheaper than a circuit breaker |
Like fuses, circuit breakers stop current flow once it reaches a certain amount. They have the advantage of being reusable (fuses must be replaced when "blown") but respond more slowly to current surges and are more expensive than fuses.
A capacitor to an electronic circuit is like a _______________ to a house?
gate |
|
driveway |
|
safe |
|
storage shed |
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.