| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
An engineer who wants to document an electric circuit would create which of the following?
a layout |
|
a schematic |
|
a blueprint |
|
a matrix |
A schematic is the proper name for a drawing of an electric or electronic circuit.
This circuit component symbol represents a(n):
potentiometer |
|
diode |
|
capacitor |
|
fuse |
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.
Which of the following is not a terminal on a transistor?
emitter |
|
input |
|
base |
|
collector |
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 |
|
closed circuit |
|
open circuit |
|
short 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.
An amplifier is most similar in function to which of the following:
step-up transformer |
|
transistor |
|
capacitor |
|
step-down transformer |
An amplifier is a device that takes a small input signal and creates a larger output signal. This makes it most similar to a step-up transformer which takes a smaller input voltage and creates a larger output voltage.