if fixture has two bulbs then two blacks are hot wires. Two whites are neutral wires.
Connecting two or more wires together.
Neither pair of these wires are ground. If you are looking in a receptacle box at these wires look deep into the box. At the back you should see the ground wires connected around a screw. These will be bare copper wires, they are the ground wires.
There are dozens of methods and products available to "connect two wires" Do you have specific application?
a usb cable has four wires, two for power and two for communication.
There are two wires in a 277 volt circuit. As with any circuit two wires are needed to get the supply voltage to the load.
A USB cable has four wires. It has two wires for power and a twisted pair of wires to carry the data.
there are two wires
what two wires are the iat from the maf sensor on a Mitsubishi eclipse gs