Quantcast
When you have a light switch on... | Almanac.com

When you have a light switch on...

Print Friendly and PDF
When you have a light switch on without a light bulb in the socket, is it still using electricity?
We consulted the head of maintenance here at The Old Farmer’s Almanac. Mike says that having the switch on will allow the electricity to progress into the wires that lead to the socket, but without a bulb, the electricity will not be used to illuminate the bulb’s filament (which gives light). Therefore, although the current is in the wiring, the electricity used is so minimal that it hardly registers on the electric meter.

More Like This