| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.84 |
| Score | 0% | 57% |
A diode to an electronic circuit is like a _______________ to a city?
one-way street |
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traffic light |
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highway |
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parking lot |
A diode allows current to pass easily in one direction and blocks current in the other direction.
Direct current flows from the __________ terminal of the voltage source to the __________ terminal.
negative, positive |
|
positive, positive |
|
positive, negative |
|
negative, negative |
Direct current flows in only one direction in a circuit, from the negative terminal of the voltage source to the positive. A common source of direct current (DC) is a battery.
What kind of diode allows current to flow in the opposite direction once a certain voltage threshold is reached?
light emitting diode |
|
v-type diode |
|
zener diode |
|
standard 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.
Which of the following is not a common type of battery?
dry cell |
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wet cell |
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deep-cycle |
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power-cycle |
Direct current flows in only one direction in a circuit, from the negative terminal of the voltage source to the positive. A common source of direct current (DC) is a battery. The three most common types of batteries are dry cell (used in small devices like TV remotes), wet cell (used for cars), and deep-cycle (storage batteries used primarily for backup and emergency power).
An amplifier is most similar in function to which of the following:
transistor |
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capacitor |
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step-down transformer |
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step-up 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.