Question

Is negative voltage dangerous?

Answer 1

The "potential difference" between its two terminals is 12 volts. If a load is connected between the two terminals, current will flow through it. The terminal from which electrons emanate is the "negative" terminal; the terminal to which they're drawn is the "positive" terminal.Dec 1, 2009

What is -12v or any negative voltage? | QRZ Forums

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At any rate, in order to be electrocuted, your body has to complete the electrical circuit between two terminals with sufficient difference in voltage between them to cause harm. If you touch only the negative terminal and your body is well insulated from the other terminal or the ground, you won't be electrocuted.