All power tools should be either double insulated or have a ground prong if they are not. It's crucial to ensure they are also in good working condition to ensure safety. Following these guidelines helps minimize the risk of electrical hazards. ;
The total charge flowing through the device with a current of 15.0 A for 30 seconds is 450 C . This charge corresponds to approximately 2.81 × 1 0 21 electrons. The calculations used formulas relating current, charge, and the charge of an electron.
;