ExamPlay Dark Logo
Se connecter

Physics for IGCSE & O level - Magnets And Currents (Section 12 - No. 1)

Which device uses an electromagnet to open and close a circuit?
A transformer
A relay
A motor
A generator

Explication

A relay

Commentaires (0)

Connectez-vous pour commenter
Publicité
BrainBehindX Inc Logo
©2026; Alimenté par BrainBehindX Inc