73·STUDY

Extra exam question E7D14

Subelement E7, PRACTICAL CIRCUITS· Group E7D

E7D14

What is the purpose of connecting equal-value resistors across power supply filter capacitors connected in series?

  • A.Equalize the voltage across each capacitor
  • B.Discharge the capacitors when voltage is removed
  • C.Provide a minimum load on the supply
  • D.All these choices are correct (correct answer)

WhyEqual-value resistors connected across series power supply filter capacitors equalize the voltage across each capacitor, discharge the capacitors when voltage is removed, and provide a minimum load on the supply. Equal-value resistors connected across power supply filter capacitors wired in series serve several purposes at once: they equalize the voltage across each capacitor (compensating for capacitor tolerance differences that would otherwise let one capacitor see a disproportionate share of the total voltage), they discharge the capacitors safely once power is removed, and they provide a minimum bleeder load on the supply, answer D. Since all three of these benefits genuinely apply, no single one alone is the complete answer.

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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