Given that three-prong plugs are considered safer, you may be wondering why, 60 years after the introduction of three-prong outlets, some new appliances have two-prong plugs.

We use plugs every day, but most of us don't spend a lot of time thinking about them. We know that there are various electrical plug types, even if we're not familiar with the ins and outs of all ...

Some outlets are installed upside down, but the three prongs still serve the same purpose.Other outlets — especially older ones — only have two slots and can only fit two-prong plugs. Some ...

Not all electrical plugs in the US are the same. Some have grounding wires while others don't, and some have one of the top two prongs bigger than the other.

I recently bought a new home and it still has many old 2 prong outlets (built in 1948). When I use a circuit tester it shows the outlets are grounded. As you would assume, due to the age of the ...

Some large appliances need additional electrical current to function properly, so a 20-amp outlet is often necessary. The different shape of the slot means you can't accidentally plug high-power ...

The US uses two standard electrical plug types: Plug Type A and Plug Type B. Both have two parallel pins for power, while the latter has an additional grounding pin for safety. But if you look ...