| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.10 |
| Score | 0% | 62% |
| 12V 30A | |
| 72V 5A | |
| 36V 15A | |
| 6V 60A |
Connecting the 6 batteries in series multiplies their voltage while keeping their current the same yielding a 72V 5A configuration. Connecting the 6 batteries in parallel multiplies their current while keeping their voltage the same yielding a 12V 30A configuration. Using a series-parallel connection, 3 batteries can be connected in series and 3 can be connected in parallel resulting in a 36V 15A configuration.
A diode to an electronic circuit is like a _______________ to a city?
highway |
|
parking lot |
|
one-way street |
|
traffic light |
A diode allows current to pass easily in one direction and blocks current in the other direction.
The valence shell of n insulator is how full of electrons?
half full |
|
more than half full |
|
empty |
|
less than half full |
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.
Which of the following is not a purpose of a resistor in an electrical circuit?
control the voltage in the circuit |
|
limit the current in the circuit |
|
moderate the heat in the circuit |
|
multiply the current in the circuit |
Resistors can be chosen in a wide variety of values to control the voltage in a circuit, limit the current, or moderate the heat produced by the components in the circuit.
This circuit component symbol represents a(n):
capacitor |
|
resistor |
|
inductor |
|
potentiometer |
Resistors are used to limit voltage and/or current in a circuit and can have a fixed or variable resistance. Variable resistors (often called potentiometers or rheostats) are used when dynamic control over the voltage/current in a circuit is needed, for example, in a light dimmer or volume control.