Drivers, Relays, and Solid State Relays. Driver circuits. A typical digital logic output pin can only supply tens of MA of current. Even though they might require the same voltage levels, small external devices such as high-power LEDs, motors, speakers, light bulbs, buzzers, solenoids, and relays can require hundreds of MA. Larger devices might even need several amps.
Communicable Diseases Epidemiology Section Wisconsin Department of Health Services Division of Public Health P-42052 (Rev 08/2015) Page 1 of 2 Handwashing Disease Fact Sheet Why is handwashing important? Handwashing, when done correctly, is the single most effective way to prevent the spread of communicable diseases. Good handwashing technique is easy to learn and can significantly reduce the spread of infectious diseases among. children and adults.
Following Good Hygiene Practices. 1  1. Wash your hands. One of the easiest and most effective measures to prevent colds and the flu is by washing your hands thoroughly and frequently. 2  2. Cover your nose and mouth. Put your hand or tissue over both your nose and mouth whenever you cough or sneeze. 3  3. Steer clear of crowds.