how we feel the elecric shock? Its hazardness to the body depends on voltage or current?

Question

tell about shocks caused by ac and dc?
genuine answers plz

Answer 1

Its the amount of current that hurts or kills. Its said to take about 50mA to kill a female (less than for a male).

However, its voltage that causes current to flow. 50 volts or lower is deemed "safe" as it will not cause sufficient current to flow through the human body. Ohms law is the relationship between voltage, current and resistance. Another thing to consider is the path of electric, rubber soles on shoes increase the resistance of the body to ground, water reduces resistance.

DC tends to be much worse for shock than ac because ac is changing direction, whereas the dc acts to contract the muscles further, especially bad if that stops you releasing the source of power.

Answer 2

The effective voltage of AC in the States is .707 of a comparable voltage of DC. This results because AC voltage oscillates with a 60 cycle sine wave. And, thus, when we talk about AC voltage level, we are actually talking about the peak voltage (e.g., 120 V in the States)...the top of the crest of the sine wave. So the average voltage, which is what electromotive power is based on, is only .707 of the rated voltage.

Thus,100 VAC is actually 70.7 V average over time. On the other hand, DC does not oscillate; so 100 VDC is exactly that...100 V. And, current, the flow of the electricity, follows whatever the voltage is doing. This comes from V = IR; so that V/R = I, and R is resistance (your body for example) and I is the current in amps. Therefore, if V is oscillating, I is oscillating.

One final bit of info before answering your question...P = I^2 R; where P is power (watts). Now to answer your question...power shocks/kills. So current (the I^2 factor) is the thing that can do the damage since it contributes to power. And it's power that transmits energy, the thing that shocks/kills people.

But, and this is a BIG BUT, V = IR so V/R = I, which means P = I^2 R = (V/R)^2 R = V^2/R = IV as well. [See source.] So what we have in the final term is recognition that it's a combination of current and voltage that does the deed. That is, one without the other, does not deliver the energy needed to shock or kill.

All the equations above are based on DC, but they can be used for AC as well when accounting for the wave shape and oscillation cycles of the AC voltage and current. The one thing you can keep in mind at this point is that DC is always more powerful than AC for the same voltage levels. This results from the fact that average voltage is always less than peak voltage for AC. And it's the average voltage and derived average current that carries real shocking power for AC.

Answer 3

The seriousness of an electric shock depends on the current. For example, some police tasers use a voltage of 400'000 volts, but do not kill. Therefore, if the amperage was increased, the victim would be killed. Think of it like this: Voltage is how much electricity is being passed through a cable, and amperage is how fast it is moving.
We feel electric shocks because of the transfer of electrons through the body, which forces muscles to contract.

Answer 4

AC has more of a penetrating capability. Voltage is a requirement for any effect. You can have thousands of amps (current) available but if it's only 12 volts you're not going to get very far unless you're shocking your tongue. Typically when you intent to shock a person, you have high voltage and low current available - like a tazer. If you want to think of electricity as water, like of voltage as the pressure and current as the width of the pipe, the water itself is an endless supply.

Ohms is a measure of resistance. Using the equation V = IR (voltage = resistance x current) you see that resistance serves to regulate current depending on how much voltage you have available.

Answer 5

Current is what is important. Electricity always takes the path of least resistance, ie the path which is the best conductor. Metals are very good conductors, and so is salt water. Our bodies aren't very good conductors, but we're a lot better than air, for example, so if we get in the way of an electrical current it will tend to go through us rather than round.

When an electric current passes through a resistive material, it transfers energy to the material, which is usually converted to heat or light (this is how a conventional light bulb works, for example). The amount of energy transferred is proportional to the resistance and to the square of the current, which is why a relatively small current going through us (given we have a high resistance) can start causing significant damage.

Answer 6

The body can stand any amount of voltage,but as little as 50 milliamps can kill you.
D/c shocks are most dangerous and the current will be maintained longer.
A/c circuit can be more easily broken,but again 50 milliamps can be fatal.
The body generates minute electrical signals continually,and when a larger current is introduced the nerves are stimulated to a painful extent

Answer 7

Current.

Answer 8

the body Resistance is the factor which causes death through shocks, to overcome this you need the body to be able to pass a quarter of an amp, so a very high voltage is required to overcome body Resistance, so if your planning to try it out don't blame me

Answer 9

canada 60hz a tickle
but humans are a little inductive so in england 50hz it would tickle a bit more

but DC you would stick to it like clue

Had to show off my inductive skills -- from L'ecole du Quebec

Answer 10

I don't know but I once accidently leant my wrists on an electric fence and after the initial shock i quite enjoyed it.