1. Applications of magnetic effect of electric current

Find the odd one out:
 
Pick the picture that shows a device which does not use magnetism produced by electric current.
Answer variants:
hockenheimswitchyardtransformerrelayw600.jpg
electric-kettle-6966010_1280.jpg
DoorBell001w600.jpg
ceiling-fan-1016677_1280.jpg
Answer:
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