Electronics - Alternating Current vs Direct Current
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Exercise"Weakness of attitude becomes weakness of character."
- Albert Einstein
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| 6. |
What is the peak value of a household appliance that uses a 230 V ac source? |
Answer: Option E
Explanation:
No answer description available for this question. Let us discuss.
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| 7. |
What is the waveform period difference between the 60 Hz electricity used in this country and the 50 Hz used in Europe? |
Answer: Option C
Explanation:
No answer description available for this question. Let us discuss.
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| 8. |
Test equipment selection enables the technician to both generate signals and: |
| A. |
change circuit conditions | | B. |
inject signals | | C. |
sense circuit conditions | | D. |
change signal frequencies |
Answer: Option C
Explanation:
No answer description available for this question. Let us discuss.
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| 9. |
Why is ac current transfer more effective than dc current transfer over long distances? |
| A. |
due to the height of power lines | | B. |
due to the use of ac generators | | C. |
due to step-up and step-down transformers reducing I2R losses | | D. |
due to very high voltages |
Answer: Option C
Explanation:
No answer description available for this question. Let us discuss.
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| 10. |
A sine wave reaches maximum positive voltage at: |
Answer: Option C
Explanation:
No answer description available for this question. Let us discuss.
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