If a power cable and a communication cable are to run parallel the minimum distance between the two, to avoid interference, should be______________?
Correct answer: C. 50 cm
- A. 2 cm
- B. 10 cm
- C. 50 cm
- D. 400 cm
Explanation
Keeping parallel power and communication cables about 50 cm apart reduces inductive and electromagnetic interference from the power cable. Very small separations such as 2 or 10 cm provide inadequate isolation.
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