Question

fill in the word that completes each statement.
current cannot flow through a circuit when the switch is
current flows through a circuit and all of the bulbs are lit only when the switch is

Explanation:

For the first blank: In a circuit, when the switch is open, the circuit is broken, and current cannot flow.
For the second blank: When the switch is closed, the circuit is complete, allowing current to flow and bulbs to light up.

Answer:

First blank: open
Second blank: closed