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E9F12:What impedance does a 1/4-wavelength transmission line present to an RF generator when the line is open at the far end?

E9F12E9F

What impedance does a 1/4-wavelength transmission line present to an RF generator when the line is open at the far end?

Direct answer summary (2024-2028 NCVEC pool)

The official correct answer for E9F12 is Very low impedance.

The key fact is Very low impedance. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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