Lowers Recommended Lead-Level Limits in Children. For the first time in 20 years, federal health authorities have lowered the recommended limit for lead exposure in young children, which they say could add 200,000 children to those believed to have unsafe lead levels in their blood.
Electrical Units of Measure. The standard SI units used for the measurement of voltage, current and resistance are the Volt [ V ], Ampere [ A ] and Ohm [ Ï ] respectively.
Resistance is symbolized by the capital letter âRâ and is measured in the unit of âohm.â However, we can also think of this electrical property in terms of its inverse: how easy it is for electrons to flow through a component, rather than how difficult.