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Electronics - Resistance and Power

Exercise : Resistance and Power - General Questions
51.
If a metallic conductor has a positive temperature coefficient of resistance, then:
as temperature increases, resistance decreases
as current increases, resistance decreases
as voltage increases, current increases
as temperature increases, resistance increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
52.
What value of a 1.3 komega.gif resistor as measured by a digital voltmeter would be considered within tolerance?
1234 omega.gif
1235 omega.gif
1366 omega.gif
1367 omega.gif
Answer: Option
Explanation:
No answer description is available. Let's discuss.
53.
If a calculator display was "0.00263," what would this answer be in percent?
0.026%
0.26%
2.63%
26.3%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
54.
A 33 komega.gif resistor with a 20% tolerance checks out as ok with which of the following ohmmeter readings?
26400 ohms
24183 ohms
6600 ohms
39970 ohms
Answer: Option
Explanation:
No answer description is available. Let's discuss.
55.
For P = V2/R, a decrease in resistance should produce:
a decrease in power
an increase in ohms
an increase in power
a decrease in current
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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