Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich risk increases when a high-voltage DC transmission line experiences rapid voltage fluctuations?
A)Corona discharge along insulators
B)Electromagnetic interference with avionics
C)Dielectric breakdown in smoothing capacitors✓
D)Ferrite core saturation in line filters
💡 Explanation
When a high-voltage DC line has rapid voltage fluctuations, intensified transient currents flow into capacitors because capacitive impedance varies inversely with frequency, causing overheating reducing the lifespan of these capacitors. Therefore, dielectric breakdown risk increases, rather than corona discharge, EMI, or core saturation which are effects of constant high frequency signals.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which phenomenon limits maximum data transmission rate approaching theoretical Shannon limit in fiber optic cables?
- Which outcome occurs when a microwave oven's waveguide is damaged, creating a small gap?
- Which risk significantly increases when a jet engine's turbine inlet temperature exceeds design limits?
- Which limitation arises due to thermal fluctuations affecting magnetic domain alignment in hard drive ferromagnetic platters?
- Which outcome occurs when a Carbon-14 contaminant degrades?
- Which consequence results when gravitational and inertial mass equivalence fails within an accelerometer?