Quash Law and Legal Definition Quash means to nullify, void or declare invalid. The procedure is used in both criminal and civil cases when there is an irregularity or defect in procedures.
power adapter - Computer Definition. A power supply for electronic devices. Also called an AC adapter or charger, power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages, and the power adapter is the external part of the power supply for a laptop. The additional DC voltages are created by internal circuits.
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. A varying current in one coil of the transformer produces a varying magnetic field, which in turn induces a voltage in a second coil. Power can be transferred between the two coils through the magnetic field, without a metallic connection between the two circuits.