| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.20 |
| Score | 0% | 64% |
An engineer who wants to document an electric circuit would create which of the following?
a matrix |
|
a layout |
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a schematic |
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a blueprint |
A schematic is the proper name for a drawing of an electric or electronic circuit.
An amplifier is most similar in function to which of the following:
step-up transformer |
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step-down transformer |
|
capacitor |
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transistor |
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.
Electricity cannot flow...
through a closed circuit |
|
through a circuit with resistance |
|
through a circuit under load |
|
through an open circuit |
An electrical circuit is a path through which electricity flows. This path contains one or more components that create a load (something that is using electricity) and that load acts as resistance to the passage of electricity through the circuit. Electricity can only flow through a circuit when the path is closed and cannot flow through an open circuit.
The valence shell of a conductor is how full of electrons?
half full |
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less than half full |
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full |
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more 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.
Capacitors are charged by what type of current?
direct |
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alternating |
|
low voltage |
|
high voltage |
Capacitors store voltage 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.