Calculate the yearly cost of running a 6 W electric clock continuously in a location where energy costs 12 cents per kW · h.

Answer 1

Cost ($) = Power (kW) x Price ($ / kWh) x Time (h)
Cost ($) = (0.006 kW) x ($0.12) x (365 days/year x 24 h/day)
Cost = $6.3072