| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.08 |
| Score | 0% | 62% |
Using a fuse with a current rating higher than that required by a circuit:
makes no difference |
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is recommended |
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makes the circuit less safe |
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is required |
A fuse is a type of low resistance resistor that stops current flow in a circuit in response to a larger than intended electric current flow. Using a fuse with a higher current rating than required by a circuit is less safe as it could potentially allow overcurrent and risk a fire or heat-related equipment damage.
Which of the following is a characteristic of batteries connected in series?
two connections are made between each adjacent battery |
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the positive terminal of one battery is connected to the positive terminal of the next |
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total voltage equals the sum of the individual battery voltages |
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total voltage equals the average of the individual battery voltages |
You can multiply the voltage or the current supplied by individual batteries by connecting them together either in series or in parallel. The characteristics of batteries connected in series are that total voltage equals the sum of the individual battery voltages, total current equals the average of the individual battery currents, the positive terminal of one battery is connected to the negative terminal of the next, and one connection is made between each adjacent battery.
What is the voltage of most household electrical systems in the United States?
60Hz |
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110V |
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220V |
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60V |
Most households use electricity with a voltage of 110V.
A diode to an electronic circuit is like a _______________ to a city?
highway |
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parking lot |
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one-way street |
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traffic light |
A diode allows current to pass easily in one direction and blocks current in the other direction.
What kind of diode allows current to flow in the opposite direction once a certain voltage threshold is reached?
light emitting diode |
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standard diode |
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zener diode |
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v-type diode |
A diode allows current to pass easily in one direction and blocks current in the other direction. A zener diode is a diode which allows current to flow in one direction as normal and will also allow current flow in the reverse direction when the voltage is above a certain value. This value is called the breakdown voltage.