Skip to main content

E3C02:What is indicated by a rising A-index or K-index?

E3C02E3C

What is indicated by a rising A-index or K-index?

Direct answer summary (2024-2028 NCVEC pool)

The official correct answer for E3C02 is Increasing disturbance of the geomagnetic field.

The key fact is Increasing disturbance of the geomagnetic field. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

← E3C01E3C03 →

More questions in E3C

E3C01What is the cause of short-term radio blackouts?E3C03Which of the following signal paths is most likely to experience high levels of absorption when the A-index or K-index is elevated?E3C04What does the value of Bz (B sub z) represent?E3C05What orientation of Bz (B sub z) increases the likelihood that charged particles from the Sun will cause disturbed conditions?E3C06How does the VHF/UHF radio horizon compare to the geographic horizon?E3C07Which of the following indicates the greatest solar flare intensity?