Which consequence results when exceeding a printed circuit board's (PCB) current limits?

💡 Explanation

Trace fusing occurs when excessive current heats the PCB trace beyond its current-carrying capacity, causing the conductor to melt and open the circuit, because of joule heating overwhelming thermal dissipation capabilities and triggering catastrophic failure. This result occurs rather than dielectric breakdown, which requires high voltage.

• Which outcome occurs when rapid cylinder pressure increase induces ultrasonic waves?
• Which outcome occurs when a three-phase transformer's protective relay misinterprets inrush current as a fault?
• Which inefficiency arises when bandwidth allocation in frequency-division multiplexing (FDM) is inflexible?
• Which outcome occurs when fiber optic signal strength is significantly reduced after several kilometers?
• Which risk increases when a PLC’s scan cycle exceeds defined limits in a robotic assembly line?
• Which risk sharply increases when concrete column ambient temperature rises beyond design specifications in a bridge?