Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome occurs when high humidity decreases surface insulation resistance in magnesium oxide (MgO) cable?
A)Increased ionic conductivity reduces impedance✓
B)Decreased dielectric constant raises capacitance
C)Electron tunneling dominates current flow
D)Ferroresonance causes nonlinear current amplification
💡 Explanation
Increased humidity introduces adsorbed water on MgO surfaces, weakening ionic bonds. This increases ionic conductivity because it provides mobile ions, therefore reducing impedance in the insulating layer, rather than affecting electron tunneling or other mechanisms.
🏆 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 →- When a Carnot heat pump maintains an internal oven temperature considerably higher than ambient, which constraint dominates operational energy costs?
- Which process causes lowered energy efficiency due to throttling?
- Which mechanism disrupts the superconducting state above Hc2?
- Which oscillatory outcome arises when a capacitive load switches?
- Which outcome occurs when measuring spin on one entangled electron destroys coherence?
- Which outcome results when exceeding curium-242's critical mass?