Family Quotes and Sayings â Family Day. âFamilies are like fudge â mostly sweet with a few nuts.â. âOur family is a circle of strength of love with every birth and every union the circle grows.â. âEveryone needs a house to live in, but a supportive family is what builds a home.â Â» Anthony Liccione. âYou donât choose your family.
Mercury was historically the first to show superconductivity, and it is an example of a Type I superconductor. Its practical usefulness is limited by the fact that its critical magnetic field is only 0.019 T, so the amount of electric current it can carry is also limited.
Another type of passive transducer is the thermistor. These devices change their resistance value to electricity that flows through them as temperature changes. Thermistors are commonly used in circuits that measure temperature. The speakers in your TV, stereo and car radio convert a varying voltage into sound.