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?
Answer
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.
Explanation
Cutting a wire breaks the conducting path, which opens the circuit. With the circuit open, electric charges cannot flow to the timer, so the countdown stops.
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