In a movie, a character cuts a wire, which stops the countdown timer of a bomb. What does cutting the wire do to the circuit?
A.) It opens the circuit so that electric charges do not flow to the timer.
B.) It closes the circuit so that electric charges do not flow to the timer.
C.)It opens the circuit so that electric charges flow to the timer.
D.) It closes the circuit so that electric charges flow to the timer.

Respuesta :

A.) It opens the circuit so that electric charges do not flow to the timer.

Explanation:

A circuit is said to be "closed" if all its points are connected, so that the  current can flow without interruption, while it is said to be "open" if the circuit is interrupted somewhere so that the current cannot flow through it.

In the movie, the character cuts the wire: this way, he opens the circuit, because the charges (the electons) that carry the current cannot flow through it anymore. Therefore, the correct choice is

A.) It opens the circuit so that electric charges do not flow to the timer.

Answer:

A.) It opens the circuit so that electric charges do not flow to the timer.

Explanation: