Electronics - Resistance and Power
Exercise :: Resistance and Power - General Questions
| 51. |
If a metallic conductor has a positive temperature coefficient of resistance, then: |
| A. |
as temperature increases, resistance decreases | | B. |
as current increases, resistance decreases | | C. |
as voltage increases, current increases | | D. |
as temperature increases, resistance increases |
Answer: Option D
Explanation:
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| 52. |
What value of a  1.3 k resistor as measured by a digital voltmeter would be considered within tolerance? |
Answer: Option B
Explanation:
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| 53. |
If a calculator display was "0.00263," what would this answer be in percent? |
Answer: Option B
Explanation:
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| 54. |
A 33 k resistor with a 20% tolerance checks out as ok with which of the following ohmmeter readings? |
| A. |
26400 ohms | | B. |
24183 ohms | | C. |
6600 ohms | | D. |
39970 ohms |
Answer: Option A
Explanation:
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| 55. |
For P = V2/R, a decrease in resistance should produce: |
| A. |
a decrease in power | | B. |
an increase in ohms | | C. |
an increase in power | | D. |
a decrease in current |
Answer: Option C
Explanation:
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