Just plz ! why does the lightbulb in the right electrical circuit turn on but not the one on the left?

In the open circuit the current cannot flow from one end of the power source to the other. Because of this there is no current flow, and therefore the light does not turn on.

*This is not my answer*

whichever one it is, it's definitely not one that you included on the list you provided.

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."