why don’t people who disarm bombs (with wires) not cut all of them at once

Question

Is it because, one of the wires when cut, makes the bomb explode?

In: Other

Answer 1

Once it is set, the bomb is being prevented from exploding before the timer reaches 0 by a signal. As long as the detonator keeps receiving this signal, it will not detonate the bomb. If you cut the wire carrying that signal, the detonator will no longer receive the signal so it will think that the timer has reached zero and promptly detonate the bomb.