My son has a homework question that has stumped me and i wonder if anyone can help...give an example of two switches that are connected in series in a typical house. I thought all circuits in the home were in parallel. Can anyone help?
A three way switch setup has the two switches in series.
Current path: from panel breaker to switch #1 to switch #2 to light to neutral back to panel.
The good conscientious technician or serviceperson will carry extra oils and lubricants in case the new pump did not come with oil or the oil was accidentally spilled, so the service call can be completed without an extra visit.