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grounding – Why is this laptop adapter grounded? – Electrical Engineering Stack Exchange

ground – Earthing: Is it important for laptops – Super User

power supply – Is grounding necessary for a re-purposed laptop charging brick? – Electrical Engineering Stack Exchange

Since laptops only have 2 wires coming from the power brick (offering no ground protection to the board), why do all the bricks have 3-wire grounded plugs? – Quora

Is it normal for the laptop charger to spark when plugging in? – Super User

How to Open and Fix Laptop AC Adapter without Damaging. DC cable and Capacitors Replacement – YouTube

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