Be very careful about some of these articles. The general ideas are basically correct, but exact numbers are subject to huge error bars. Your typical clam-typ

Be very careful about some of these articles. The general ideas are basically correct, but exact numbers are subject to huge error bars. Your typical clam-type meter will easily be off by 5-10%, possibly much more at very low amperages in a household environment. So articles written by well-meaning tech writers measuring their computer with a 50$ clamp meter should be taken with a grain of salt. They are really not designed to properly measure anything less than a few amps.