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 on your electronic circuit is measured in ohms. The most common and simplest way to measure resistance is with a digital multimeter, or DMM. when you connect the terminals of the resistor to the two probes, it supplies a known current, measures the resulting voltage drop, and calculates the resistance.