That will heavily depend on the surroundings, your body, and contact points.

Also, freshwater and saltwater eels approach it differently, with freshwater ones (the ones delivering those 600 volts) able to give out amperage of around 0,01A.

This may not seem like much, but it is actually enough to stun and paralyze a human under certain circumstances, and this is exactly what we see here. If there’s nobody to break the contact, the current will keep flowing for several more seconds, and if you’re unlucky, your heart can stop, with all the consequences it entails.