You could solder them together and then tape securely with electrical tape.
usually you segregate them. all whites together all blacks together all non-coated copper wires and/or green coated wires together use wire nuts to connect above-mentioned wires together
First twist together the wires to be joined. For larger wire use lineman's pliers to apply twist. Make the twist clockwise. Then twist on the wirenut clockwise on the wires. Wirenuts are rated as to how many wires of a certain size they can hold but in general twist by hand until you can twist no more and then about 1/2 twist with pliers. If the wirenut does not get tight it is too big or internal metal portion could be clogged in some way.
If you have good access to the wiring this is relatively easy to do. Each of the 10 lights is connected to another in parallel in a "daisy chain" fashion. Light 1 is connected to the switch, light 2 is connected to light 1, light 3 is connected to light 2 and so forth. Let's say it is light 5 that you wish to switch separately. You can first install the new switch by either adding a new box or modifying old switch box. There are two gang switches that will fit the form factor of a single switch. TURN OFF THE POWER TO SWITCH BOX. Using the same supply input at original switch, add a new black wire to the wire nut for input to original switch and connect this to the input of new switch. Then run a new wire to light 5 and connect black wire to the output of new switch. Connect all the white wires together in switch box and separately connect all bare wires together in switch box. Now at light 5 undo the black and white wire coming from the fixture, and reconnect the wire nuts so that there is a direct connection between light 4 and light 6. Do the same for the ground if present (bare wire). You now have the fixture wires hanging free. Now connect the black wire from new switch to the fixture black wire and white to white and you are done.
You would have to be crazy to do this. Go to your local hardware store and buy connectors made for the purpose. Only make connections inside an electric box, not just at random places in a cable. Make sure to turn off power before doing this. Both wire nuts and push type connectors are available in any hardware store. If wires are lower current in an appliance or devise you may be able to solder and tape or use heat shrink tubing. If you have any doubts about an answer check the bio of the person giving the answer to see if they are qualified to give an answer.
The wire nuts do not have to be inside the junction box. They must, however, be as tight as possible to keep moisture from inside the light fixture.
Wire nuts
An alternative to wire nuts for connecting electrical wires is using push-in connectors or lever connectors. These devices provide a secure and reliable connection without the need for twisting wires together.
Push connectors and wire nuts are both used to connect electrical wires, but they have some key differences. Push connectors are easier and quicker to use, as they simply require pushing the wires into the connector. Wire nuts, on the other hand, require twisting the wires together before securing them with the nut. Push connectors are also more compact and can be used in tight spaces, while wire nuts are bulkier. Additionally, push connectors provide a more secure and reliable connection compared to wire nuts.
usually you segregate them. all whites together all blacks together all non-coated copper wires and/or green coated wires together use wire nuts to connect above-mentioned wires together
You will connect the three black wires together, the three white wires together, and the three ground wires together. Use wire nuts to secure the connections. Follow the manufacturer's instructions and make sure to turn off the power before proceeding.
To properly wire two outlets in one box, you will need to connect the incoming power source to both outlets using pigtail wires. Connect the black wires to the brass screws, the white wires to the silver screws, and the ground wires to the green screw or grounding screw. Make sure to follow the proper wiring diagram and use wire nuts to secure the connections.
Push-in wire connectors are easier to use and require less effort to connect wires compared to wire nuts. They also provide a more secure connection and are less likely to come loose. Wire nuts, on the other hand, are more traditional and require twisting the wires together before securing them with the nut. They are generally more reliable for larger wire connections and are better suited for environments with vibrations or movement.
To install a dimmer switch with 3 wires, first turn off the power to the circuit. Connect the ground wire to the green screw on the dimmer switch. Connect the black wire to the wire labeled "hot" on the dimmer switch. Connect the red wire to the wire labeled "load" on the dimmer switch. Secure the wires with wire nuts and install the dimmer switch into the electrical box. Turn the power back on and test the dimmer switch.
To properly install a light switch with 4 wires, first turn off the power to the circuit. Connect the ground wire to the green screw on the switch. Connect the two black wires to the brass screws on the switch, and the red wire to the silver screw. Secure the wires with wire nuts and mount the switch in the electrical box. Turn the power back on and test the switch to ensure it is working correctly.
To properly wire a light fixture with 3 sets of wires, first identify the hot (black), neutral (white), and ground (green or bare) wires in each set. Connect the hot wires together, the neutral wires together, and the ground wires together using wire nuts. Then, connect the fixture's hot wire to the group of hot wires, the neutral wire to the group of neutral wires, and the ground wire to the group of ground wires. Finally, secure all connections with electrical tape and install the light fixture according to the manufacturer's instructions.
To wire a ceiling fan with a light kit, first turn off the power to the circuit. Then, follow the manufacturer's instructions to connect the wires from the fan to the corresponding wires in the ceiling. Typically, you will connect the black wire to the black wire, the white wire to the white wire, and the green or bare wire to the ground wire. Finally, connect the wires from the light kit to the corresponding wires in the fan. Make sure to secure all connections with wire nuts and test the fan before turning the power back on.
Lever nuts and wire nuts are both used for connecting electrical wires, but they have some key differences. Lever nuts use a lever mechanism to secure the wires in place, while wire nuts twist onto the wires. Lever nuts are generally considered more effective for electrical connections because they provide a more secure and reliable connection.