Which two items are commonly found on an electrical bill?

Kilowatt hours and charges are indeed commonly found on an electrical bill. Kilowatt hours (kWh) represent the amount of electricity consumed during a billing period. This unit is essential for calculating energy usage and ultimately defining how much a customer owes based on their consumption.

Charges on the bill typically refer to the costs associated with this consumption, including any rates set by the utility provider per kilowatt hour used. These charges can vary based on factors like time of use, tiered pricing, or the specific plan the customer is on.

In contrast, other options mention elements that, while potentially relevant to energy use or billing, are not standard components of all electrical bills. For example, service fees and demand charges may be applicable in certain situations or for specific types of customers but are not universally included in every bill. Similarly, voltage and usage metrics might be displayed in more technical contexts but are not typical line items for standard residential customers. Therefore, the combination of kilowatt hours and charges reflects the fundamental elements of an electricity bill.