I have a Microsoft Surface Pro tablet which, when charging from the included power adapter, gives a slight tingling feeling when touching anywhere on the Magnesium shell.
This is a commonly reported problem with the Surface Pro and Microsoft are willing to replace affected units free of charge.
Out of curiosity, I would like to measure the voltage on the case with respect to ground. The AC adapter is a 2-prong device which uses a IEC standard figure-8/shotgun connector (no ground pin) and outputs both 12V and 5V DC.
If I take a multimeter and connect one lead to ground, and the other to the case of the tablet, will I damage either the multimeter or the tablet? My understanding is that the voltmeter input is a very high impedance and as such a negligible current should flow.