Which risk increases when a step-up transformer's insulation fails in a high humidity environment?

💡 Explanation

Dielectric breakdown increases because the *increased electric field stress* due to insulation compromise, coupled with moisture ingress, exceeds the dielectric strength; therefore impedance is lowered rather than something else, because current flow cannot be impeded.

• Which mechanism causes endothermic reaction rate to initially increase with rising temperature?
• Which outcome results when grain boundaries impede dislocations?
• Which constraint limits maximum efficiency in heat engines?
• Which mechanism allows electron excitation into antibonding orbitals?
• Which mechanism causes higher impedance in a coaxial cable at resonance?
• Which outcome occurs when plane-polarized light exits sucrose solution?