"Normally closed" switch: does it use more power than a "Normally open" for a low-power battery-powered ATtiny project?

Published: 14/11/2019
"Normally closed" switch: does it use more power than a "Normally open" for a low-power battery-powered ATtiny project?
Source: ELECTRONICS.STACKEXCHANGE.COM

I have a "normally closed" magnetic door sensor, that I'd like to use with an ATtiny microcontroller. Does a "normally closed" switch use more power than a "normally open" switch? i.e. since the switch will be closed 99.9% of the time, will some current flow through the switch, thus wasting battery? Or is there a way to make a "normally closed" switch not use more than a "normally open"

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