What is electrical noise?

What will be an ideal response?


Electrical noise is an unwanted voltage signal that rides on a signal. Noise is usually the result of radio frequency interference (RFI) or electromagnetic induction. (EMI).

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When radiation causes long linear plastics to break into short segments, with the plastics losing strength as a result of this breaking, it produces symptoms such as ____.  ?

A. ?stress cracking B. ?hardening C. ?gasification D. ?melting

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An arm of the cylindrical robot which is driven by a direct-current motor needs a torque of 100 in-lbs. The DC motor has a torque constant of 3 in-lbs per ampere. How much current is needed to drive the robot arm at maximum load?

What will be an ideal response?

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The accompanying figure depicts the Lake House ____.

A. loft B. living room C. playroom D. kitchen

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According to the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE), the minimum vacuum level in a system should be __________ microns. 

A. 1,000 B. 2,000 C. 3,000 D. 5,000

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