Can I make choux pastry with an electric hob?
I really don't think it's necessary for this application, Didgeridrew's advice regarding the pastry seems spot-on to me. However, if you really want an instantaneous temperature change for any reason and you're stuck with a problematic stove, you can make that change if you can control individual burners separately.

Keep another burner set to "high" while you're working on the burner set to "low". Then when you want a quick increase in the heat level, you just switch burners. (Hobs = Burners, right?) You only need to keep the "high" burner on for the length of time it takes to heat, or just keep a pot of water boiling on the "high" burner until you're ready to make the swap. Of course, the process works just as well in reverse.