Will a high voltage shock feel much different (5Kv) compared to a low voltage shock (70v) if the current output is the same?

You indicate that the rating of the two devices have the same current output. I will assume for the discussion that the 6 ma output is the limit of each device.

Placing the 70 volt pads on the human body you have three conditions to consider. Dry skin has a resistance value of about 100,000 ohms, wet 1000 ohms and if you break the skin 500 ohms.

Applying ohms law then we solve for the possible currents:

I = 70/100000 = 0.0007 amps or 0.7 ma
I= 70/1000 = 0.07 amps = 70 milliamps but your device is limited to 6 ma, thus either a fuse opens or some other OCPD limits the current.
I = 70/500 = 140 ma and again your device is limited to 6 ma, thus either a fuse opens or some other OCPD limits the current.


Now do the same calculations for the 5000 volt device and you will find that you will reach the maximum output of your device in all three cases.

So what does this mean? Likely the 70 volt device applied to dry skin "MAY" not harm you. In all other applications of the 70 or 5kV devices, you will be able to send 6 ma of current through the body. In one case you develop a power of =70*.006 = 0.42 watts, in the other case you develop a power of = 5000*.006 = 30 watts.

At 6 ma, it is not likely that you will cause heart fibrillation so you might live through the experience, however, at 5kV and 6 ma, the 30 watts application of power will burn your skin tissue and or muscle tissue, etc. over the time you apply it.

Hope this helps,

Newton1Law

No difference in equal current shocks regardless of the Voltage dropping resistors it went through before entering a human body.
The only way possible to have the same current through identical parts of your body from a 5 kV source and a 70 V source is to have (5,000/70) times as much total resistance (body resistance and internal resistance of Voltage source included) in series with the 5kV source as is in series with the 70V source. Placing that much resistance in series with the 5kV and your body resistance would result in a 70V drop across your body resistance and the rest of the 4,930V would have to be dropped across a resistance in the circuit external to your body.

Another way to look at it is that between any two points on a human body equal amounts of current from two different magnitude Voltage sources through the resistance between those two points would develop the same Voltage magnitude. Therefore the result is that for any given current value through two nodes of a human body the same Voltage magnitude will exist across the two nodes regardless of the magnitude of the Voltage back at the source before being dropped by the series resistance.

This is an "Ohms Law" problem. If your commercial device really does produce a 6mA current with 70 Volts across the pads, your body resistance is about 12 kOhms.

If you put 5 kVolts across the same pads, you'd get a current flow of about 0.4 Amps (not mA). That would kill you, or leave you with internal and external burns.

I suspect that your commercial device has protection that limits the current flow to 6 mA, regardless of the resistance of the pad / gel / body system. It may never deliver the full 70 Volts.

The TENS unit will produce UP-TO V while delivering 6ma. It will not deliver 5Kv.
You will not feel any difference because there isn't any.

YES, 5KV MAKES YOU FEEL MUCH PAINFUL !
70V HAS NOT MUCH EFFECT TO HUMAN PAINFUL FEELING BECAUSE HUMAN BODY RESISTANCE ABLE TO REDUCT THE CURRENT FROM A LOW 70V SOURCE.