When defusing a bomb, why can’t you just cut all wires at once?

Question

When defusing a bomb, why can’t you just cut all wires at once?

In: 3949

Answer 1

Just to add to all the right answers here: when dealing with electricity it’s technically not possible to cut all wires at once because electric current is pretty fast.

Even a very small delay between the cutting of two wires allows to set the trigger off if it is designed to explode when tampered with.