Which of the following is a reason to use shielded wire?
To decrease the resistance of DC power connections
To increase the current carrying capability of the wire
To prevent coupling of unwanted signals to or from the wire✓Правильный ответ
To reduce receiver overload
Объяснение
The grounded conductive shield around the inner conductor intercepts electric fields, so unwanted signals neither radiate out of the wire nor couple into it. Shielding does not change the DC resistance or the current-carrying capacity of the conductor inside.