This has been mentioned as a side-topic in other threads, but can anyone give me a straight answer:

1. If I switch off my tablet and then switch it on a few hours later, does that consume more power than if I just leave the tablet on standby for the same amount of time?

2. If that's the case, at what point does it become worth switching it off to save power? A day? Two days? A week? Or is it never worth switching it off because the battery runs down anyway?