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Monday Quiz: Noise and shielding

07 Dec 2015  | Martin Rowe

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Engineers should never get tired of hearing about noise and circuits as it is always worth repeating.

Every system and circuit suffers from noise to some extent. While there are many papers, books, videos and articles about the causes of noise and how to mitigate it, the subject is always worth repeating. We know this because EMC consultants always seem to get work. While this quiz won't put any EMC engineer out of a job, you can't go wrong thinking about how noise causes interference in your circuits, systems and measurements.

The source of this week's quiz is Noise and Shielding, a technical paper by Kim Fowler. As always, answers appear on the last page.

1. Noise has a nasty talent for finding ways into circuits. The following circuit is an example of:

a. Inductive coupling

b. Transformer coupling

c. Conductive coupling

d. Capacitive coupling

e. Radiated coupling

Question 1


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