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.
The ampere, often abbreviated to amp or A. It measures electrical current which is denoted in Ohm's Law as I. The unit or instrument used to measure electric is called AMMETER. More detail. The unit is named after the French physicist AndrÃ© Marie AmpÃ¨re. <><><>. A current of 1A is equal to 1 coulomb of charge passing a point in 1 second.