| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.26 |
| Score | 0% | 65% |
The conversion of alternating current (AC) into direct current (DC) is called:
capacitance |
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rectification |
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inductance |
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reactance |
A diode allows current to pass easily in one direction and blocks current in the other direction. Diodes are commonly used for rectification which is the conversion of alternating current (AC) into direct current (DC). Because a diode only allows current flow in one direction, it will pass either the upper or lower half of AC waves (half-wave rectification) creating pulsating DC. Multiple diodes can be connected together to utilize both halves of the AC signal in full-wave rectification.
An engineer who wants to document an electric circuit would create which of the following?
a blueprint |
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a schematic |
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a matrix |
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a layout |
A schematic is the proper name for a drawing of an electric or electronic circuit.
Longer the electrical wires mean _______________ voltage drop.
diminishing |
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complete |
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greater |
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lesser |
Electrical wires have a certain amount of resistance per foot. A longer wire means more resistance and a greater voltage drop.
A transistor works by allowing a small amount of current to control general current flow. Where is the small amount of current applied?
collector |
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base |
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emitter |
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input |
The transistor is the foundation of modern electronic devices. It is made entirely from semiconductor material (making it a solid state device) and can serve many different functions in a circuit including acting as a switch, amplifier, or current regulator. 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.
What is the primary difference between a rectifier and an inverter?
a rectifier strips out the DC portion of electricity while an inverter strips out the AC portion |
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a rectifier strips out the AC portion of electricity while an inverter strips out the DC portion |
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a rectifier converts a DC input to AC while an inverter converts an AC input to DC |
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a rectifier converts an AC input to DC while an inverter converts a DC input to AC |
A diode allows current to pass easily in one direction and blocks current in the other direction. Diodes are commonly used for rectification which is the conversion of alternating current (AC) into direct current (DC). Because a diode only allows current flow in one direction, it will pass either the upper or lower half of AC waves (half-wave rectification) creating pulsating DC. Multiple diodes can be connected together to utilize both halves of the AC signal in full-wave rectification.