What is used to start the flow of current in an electrical circuit?
energy a doorbell heat energy kinetic energy simple Firecrackers cycles deltas
A B C D E F G H
Some systems have an additional connection for a second doorbell switch.
a doorbell is used to start the flow of current in an electrical circuit
What is used to start the flow of current in an electrical circuit? (A) energy (B) a doorbell (C) heat energy (D) kinetic energy (E) simple (F) Firecrackers (G) cycles (H) deltas