Extra exam question E7D11
Subelement E7, PRACTICAL CIRCUITS· Group E7D
What is the purpose of an inverter connected to a solar panel output?
- A.Reduce AC ripple on the output
- B.Maintain voltage with varying illumination levels
- C.Prevent discharge when panel is not illuminated
- D.Convert the panel’s output from DC to AC (correct answer)
WhyAn inverter connected to a solar panel's output converts the panel's DC output to AC. An inverter connected to a solar panel's output converts the panel's native DC output into AC, since solar panels themselves generate DC and most home and grid loads need AC power, answer D. It isn't primarily there to reduce AC ripple, maintain voltage under varying illumination (that's more a function of the charge controller or the inverter's MPPT tracking, not the DC-to-AC conversion itself), or prevent discharge when the panel isn't illuminated, that's a blocking diode's job.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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