Which of the following are potential sources of EMI? (Select TWO).

The correct answer is A. Strong magnets E. AC power runs. Electromagnetic Interference (EMI) is unwanted electrical noise that disrupts electronic signals. Strong magnets (A) generate powerful magnetic fields that induce EMI in nearby conductors and electronics. AC power runs (E) - especially unshielded electrical wiring carrying…

Hardware

Question

Options

AStrong magnets
BToaster ovens
CCordless phones
DFlat panel TVs
EAC power runs

How the community answered

(48 responses)

A
94% (45)
C
2% (1)
D
4% (2)

Explanation

Electromagnetic Interference (EMI) is unwanted electrical noise that disrupts electronic signals. Strong magnets (A) generate powerful magnetic fields that induce EMI in nearby conductors and electronics. AC power runs (E) - especially unshielded electrical wiring carrying alternating current - emit electromagnetic fields that can interfere with data cables running parallel to them. This is why data cables should never run parallel to AC power lines without shielding. Cordless phones can cause RF interference but are typically classified separately; toaster ovens and flat panel TVs are not primary EMI concerns in networking/hardware contexts tested on the A+ exam.

Topics

#EMI#electromagnetic interference#AC power runs#signal interference

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