A photodiode ____.
A. is used to capture pictures
B. emits light
C. conducts in the presence of light
D. conducts in the absence of light
Answer: C
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The least effective weapon organic producers have in controlling insects is the use of predator insects
Indicate whether the statement is true or false
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When copper is being brazed to steel _____
A) the technique is identical to brazing copper to copper B) more heat is applied to the steel fitting C) a filler metal with a high phosphorus content is best D) a filler metal with a high silver content is used
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79.06 รท 7.4 =
A) 10.68 B) 11.69 C) 10.69 D) 11.68
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Infrared wireless system send data by the intensity of the light waves instead of whether the light signal is on or off.
a. true b. false
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