Eating or drinking something that's contaminated with germs can cause food poisoning. Often, people get food poisoning from animal-based foods â like meat, poultry, eggs, dairy products, and seafood. But unwashed fruits, vegetables, and other raw foods also can get contaminated and make someone sick.
An LDR or photoresistor is made any semiconductor material with a high resistance. It has a high resistance because there are very few electrons that are free and able to move-the vast majority of the electrons are locked into the crystal lattice and unable to move. photoresistor or light dependent resistor is a component that is sensitive to light. When light falls upon it then the resistance changes. Values of the resistance of the LDR may change over many orders of magnitude the value of the resistance falling as the level of light increases.
Due to server maintenance we are not accepting new questions at this moment. How Does The Lcd Screen Work How Does It Emit Visible Light. LCD vs LED vs Plasma 2013 How They Work : An LED will begin to emit light when the onvoltage is exceeded.