The answer to 'how does electrical meter work' is that an electrical meter is a device that measures the amount of electrical energy consumed by a home or business. It works by recording the total amount of electricity used over time, which is then used to calculate the energy bill.
Electrical meters typically have a spinning disk or digital display that records the flow of electricity through the meter. As more electricity is used, the meter will spin faster or the digital display will increase. The meter reading is then used by the utility company to determine the amount of electricity used and the corresponding charge on the customer's monthly bill.