2014 · Q103
A mobile phone charger is
General KnowledgePhysics
- Aan inverter
- Ba UPS
- Ca step-down transformer
- Da step-up transformer
Explanation
A phone charger steps mains voltage down (and rectifies it) to low-voltage DC.
A mobile phone charger is
Explanation
A phone charger steps mains voltage down (and rectifies it) to low-voltage DC.