Which of the following is not likely a possible source of danger: an area with high electric?

Question

a. resistance
b. voltage
d. current

Answer 1

It depends. None of them are dangerous alone.

For Example. High voltage is not dangerous if it's limited to low current (Van DeGraff generator). High current is not dangerous without high voltage.

High resistance can be dangerous if it has a high voltage across it or a medium amount of current through it. Think of an electrical outlet, the resistance to ground is infinte; so if you touch it the low (compared to infinitiy) amount of resistance in your body alows a high amount of current to flow though your body, which can kill you.

I think the answer they are looking for is resistance, but technically they are all equally dangerous depending on the context.

Answer 2

High resistance, but only if there is not power to it. If there is power to a high resistance object, you will get extreme heat or light, which also usually involves heat. So it could be dangerous.

High voltatage is almost always dangerous, because if you are at a lower potential, the current will flow and hurt you. I believe there are ways to raise your potential safely, but I won't be testing this out. Somehow you would have to isolate yourself. One wrong move and zap the current would flow and torch you.

High current - well, maybe you could have some oddball situation where you have relatively high current and super low voltage, but this is usually not true at all. You need voltage just to "push" / "pull" current through a conductor. Under normal applications, this would also be dangerous.

The danger comes from current flowing through you and super heating your tissues along the path.

Final answer: An arc welder is all three of these things when used properly. Before the arc is struck, the air gap between the weld filler and the stock is high resistance when you get close enough, the high voltage causes the arc to start and the high, but controlled current flows.. Welder's use these machines safely everyday. Handle the tool wrong and current will flow through you.

Answer 3

A: resistance. Resistance is the opposition to current flow.

Voltage and current work together. i.e. voltage provides the electric pressure to overcome the body's resistance for current to flow. Current flow through the body is what gives the electrical shock.