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سؤال 224

What current flows equally on all conductors of an unshielded multiconductor cable?

  1. Differential-mode current
  2. Common-mode currentپاسخ درست
  3. Reactive current only
  4. Magnetically-coupled current only

توضیح

Common-mode current is by definition the component that flows in the same direction and with the same magnitude on every conductor of a cable, returning through the surrounding environment. Differential-mode current flows out on one conductor and back on another, so it does not flow equally on all of them.

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شروع تمرین
سؤال 224: What current flows equally on all conductors of an… · FCC Amateur Extra Class (Element 4) · Questena