How do you go about wiring up a light switch in a home electrical system?

To wire up a light switch in a home electrical system, you first turn off the power to the circuit. Then, you connect the black wire from the power source to one terminal on the switch, and the black wire leading to the light fixture to the other terminal. Finally, you connect the white neutral wires together and secure all connections with wire nuts. Turn the power back on to test the switch.