Electric shock when connecting devices from two different outlets
One socket is grounded (grounding set without a circuit 5 meters deep), the second socket is not grounded. If you connect two devices to different sockets and come in contact with the metal parts of these devices, then it starts to pinch with current. If you connect the devices to any one outlet, it does not hit with electricity. What is the reason?
Is it electric shock or potential? Measure the difference on the cases with a voltmeter and share the result with us.