In accounting, liabilities are obligations of the company to transfer something of value (an asset-see above) to another party. On a company s balance sheet, a liability may be a legal debt or an accrual, which is an estimate of an obligation. Equity is the owner's value in an asset or group of assets.
A stable variable power supply with an adjustable output voltage from 5 volts to 30 volts can be
A unregulated 12 volt 1 amp supply is probably designed to provide the rated 12 V at full output current and the lowest valid AC input voltage, like 110 V. It could be over 13 V at 110 V in at no load (0 amps out) alone, and then higher yet at higher input voltage. Such a supply could easily put out 15 V, for example, under some conditions. Devices that needed the 12 V were designed to handle that, so that was fine. Regulated. Modern power supplies don't work that way anymore.