A user writes:
The power supplied to a typical black-and-white television set is 90 W
when the set is connected to 120V. (a) How much electric energy does this
set consume in one hour? (b) A color television set draws about 2.5 A
when connected to 120 V. How much time is required for it to consume the
same energy as the black-and-white model consumes in one hour?