The common-mode gain of an op-amp is

A) much less than one B) very high
C) about unity D) inverted


A

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When making brick, blending is necessary to yield the appropriate composition.

Answer the following statement true (T) or false (F)

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Allen is a full-time employee of Mr. Green and receives an annual salary of $48,000, which is paid weekly. Besides federal and state income taxes, Mr. Green is required to withhold 7.65 percent of his income for social security tax.

a. What is Allen’s weekly income before anything is taken out? b. What was the amount of social security tax withheld for the year? c. What amount does Mr. Green withhold from Allen’s weekly check for social security tax?

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What is the advantage of a non-contact voltage detector over a volt meter?

A) It can measure more than one electrical characteristic. B) It connects wirelessly to smartphones. C) It provides a more accurate reading. D) It does not have to contact the energized electrical circuit to indicate voltage.

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?When mounting a collector on a roof, what should mounting hardware be fastened to?

A. ?roof decking B. ?oriented strand board C. ?rafters or top cord of wooden trusses D. ?plywood

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