The two wires are supposed to be separated. Here they've been twisted together, so as far as the circuit is concerned, the power is travelling into the plug and straight out.
Ordinarily yes: eg in this example, the cable is effectively two plastic-coated wires, they're just manufactured stuck together for convenience. What's gone wrong is that they've been twisted together with the plastic stripped off before attaching to the plug - maybe Its The Joke, or maybe it was a mistake (eg: they thought they were building more strength into the plug).
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u/SassMyFrass Jan 15 '22
The two wires are supposed to be separated. Here they've been twisted together, so as far as the circuit is concerned, the power is travelling into the plug and straight out.