Advanced Qualification · A-007 Feedlines and matching · A-007-004-010
In a half-wave dipole, where does the minimum current occur?
- A At the right end
- B At both ends
- C At the centre
- D It is equal at all points
Correct answer: B — At both ends. From the official ISED question bank, verified word for word.
Why
In a half-wave dipole, the electrical current must stop flowing at the very tips because there is nowhere else for the electrons to go, creating a point of zero or minimum current at each end. The full explanation — and one for every question — is in Pro.
Practise this section
Feedlines and matching at the advanced level: transmission line theory, impedance transformation, stubs and matching networks.