Electronic Devices - Voltage Regulators
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Exercise"Everyone is wise until he speaks."
- (Proverb)
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| 1. |
The ________ is (are) an adjustable voltage regulator. |
| A. |
series 7800 ICs | | B. |
series 7900 ICs | | C. |
LM317 | | D. |
None of the above |
Answer: Option D
Explanation:
No answer description available for this question. Let us discuss.
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| 2. |
The ________ the ac variation with respect to the dc level, the ________ the filter circuit's operation. |
| A. |
smaller, better | | B. |
larger, better | | C. |
smaller, worse | | D. |
None of the above |
Answer: Option C
Explanation:
No answer description available for this question. Let us discuss.
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| 3. |
In a current-limiting circuit, ________ provide(s) the limiting of the maximum load current. |
| A. |
the Zener diode | | B. |
the short-circuit resistor Rsc | | C. |
the transistor Q1 | | D. |
both the short-circuit resistor Rsc and transistor Q2 |
Answer: Option C
Explanation:
No answer description available for this question. Let us discuss.
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| 4. |
IC units provide regulation of ________. |
| A. |
a fixed positive voltage | | B. |
a fixed negative voltage | | C. |
an adjustably set voltage | | D. |
All of the above |
Answer: Option C
Explanation:
No answer description available for this question. Let us discuss.
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| 5. |
The ________ values of capacitor filter provide ________ ripple and ________ average voltage. |
| A. |
larger, more, higher | | B. |
smaller, less, lower | | C. |
smaller, more, higher | | D. |
larger, less, higher |
Answer: Option E
Explanation:
No answer description available for this question. Let us discuss.
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