| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.48 |
| Score | 0% | 70% |
Which of the following allows encapsulating complex circuit designs for easier integration into electronic devices and machines?
parallel circuits |
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series-parallel circuits |
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integrated circuits |
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series circuits |
Circuits containing transistors are packaged into integrated circuit chips that allow encapsulating complex circuit designs (CPU, memory, I/O) for easier integration into electronic devices and machines.
Why does current in an electric circuit create heat?
current is naturally hot |
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heat is created when the current overcomes resistance in the wire |
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the wire in the circuit burns when current passes through |
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voltage is naturally hot |
Current in an electric circuit creates heat when the current overcomes resistance in the wire.
The voltage output of a transformer primarily depends on which of the following?
the conductor used for the wire in the coils |
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the number of turns in the wire of the coils |
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the diameter of the coils |
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the diameter of the wire in the coils |
A transformer utilizes an inductor to increase or decrease the voltage in a circuit. AC flowing in a coil wrapped around an iron core magnetizes the core causing it to produce a magnetic field. This magnetic field generates a voltage in a nearby coil of wire and, depending on the number of turns in the wire of the primary (source) and secondary coils and their proximity, voltage is induced in the secondary coil.
The ampere is a unit of measurement for:
inductance |
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power |
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current |
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energy |
Current is the rate of flow of electrons per unit time and is measured in amperes (A). A coulomb (C) is the quantity of electricity conveyed in one second by a current of one ampere.
An engineer who wants to document an electric circuit would create which of the following?
a layout |
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a blueprint |
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a matrix |
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a schematic |
A schematic is the proper name for a drawing of an electric or electronic circuit.