Doorbells operate on very low voltage. Older models typically require just 8 to 20 volts of electricity -- most often 16 volts -- while newer models take 24 volts of electricity. Newer models have higher voltage output to accommodate longer runs of wire in larger homes.
Individuals who aim at becoming management researchers or professors may complete the Doctor of Business Administration (DBA) or the PhD in business administration or management. There are three levels of managers, which are typically organized in a hierarchical, pyramid structure.
Recreation studies is generally a degree that prepares graduates to work with community members in their pursuit of fitness, rehabilitation and leisurely activities. Continue reading for an overview of the types of programs, as well as career and salary info for some career options for graduates.