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Which insulating material is used for making switches? Ans:1. Plate or switchboard: This is the part that contains the  electrical switches  or sockets. It can be made of a number of  materials , ranging from metal to glass and even wood or leather. However, Polycarbonate is the most common  material used . 2. Switch: The rocker switch is almost always made of Polycarbonate. However, only the finest switches like that by Anchor are made of fire-retardant material (Polycarbonate of V0 grade and Urea Formaldehyde) which can be a boon in case of any untoward incidents. Some switches may also contain an LED light which indicates the switch is in ON / OFF position. 3. Housing: This is the main body of the switch and is made of insulating or non-conducting material like plastic. 4. Contact Terminals: These are made of brass material. Brass is a good electrical and thermal conductivity and ease of forming, combined with good corrosion resistance, makes brass an ideal c...

Piezoelectric  sensor Is piezoelectric AC or DC? A vibrating piezoelectric device generates an ac voltage while electrochemical batteries require a dc voltage, hence the first stage needed in an energy harvesting circuit is an ac–dc rectifier connected to the output of the piezoelectric device How long do piezoelectric crystals last . Due to the nature of the crystalline formation, transducers will naturally decay over time (3-6 years typically) in their ability . Quartz is quite a good insulator so, as long as the PD is low enough to prevent a discharge, I would have thought the meter reading would stay the same Piezoelectricity  was discovered by two French scientists’ brothers,  Jacques  and  Pierre Curie , in 1880. They found out about piezoelectricity after first realizing that pressure applied to quartz or even some certain crystals creates an electrical charge in that certain material.They later referred t...

What Is an Asteroid? The Short Answer: Asteroids are small, rocky objects that orbit the Sun. Although asteroids orbit the Sun-like planets, they are much smaller than planets. Asteroids are small, rocky objects that orbit the sun. Although asteroids orbit the sun like planets, they are much smaller than planets. A close-up image of the asteroid Ida taken by NASA's Galileo spacecraft.  Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA There are lots of asteroids in our solar system. Most of them live in the main  asteroid belt —a region between the orbits of Mars and Jupiter. Most asteroids in our solar system can be found in the asteroid belt, between Mars and Jupiter. Asteroids hang out in other places, too. For example, some asteroids are found in the orbital path of planets. This means that the asteroid and the planet follow the same path around the sun. Earth and a few other planets have asteroids like this. Where did asteroids come ...

money money money $ This article is about the city of gold. by Mark Cartwright El Dorado ('Gilded Man' or 'Golden One') referred to the legendary kings of the Muisca (or Chibcha) people who populated the northern Andes of modern-day Colombia from 600 CE to 1600 CE and the name is especially associated with their coronation ritual held at Lake Guatavita, just north of modern-day Bogotá. Over time, El Dorado extended its meaning to refer to a lost golden cityand even an entire region. When the Spanish Conquistadors heard these incredible tales of a city paved in gold they tried every means possible to find it. Ultimately though, the Spanish, and the explorers and treasure hunters who followed them, never did find the fabulous treasures of El Dorado. The Significance of Gold In the cultures of ancient Colombia gold had long been a popular material for metalworkers. The metal actually had no particular ...

If you touch your Screen ?Then how is it works ?Do u want to Know the read the article Below ! by Chris Woodford.  Last updated: December 6, 2019. O nce upon a time, the way to get a computer to do something useful was to feed it a stack of cards with holes punched into them. Thankfully, things soon moved on and, by the end of the 20th century, you could get a computer to do things simply by pointing and clicking with a keyboard and a mouse. But the real revolution in making computers easy to use has happened only in the last decade or so—with the arrival of  touch-sensitive screens . Most smartphones, ebook readers, and some MP3 players already work with simple, touch controls—and some laptops work that way too. Touchscreens are intuitively easy to use, but how exactly do they work? How is a touchscreen different from a keyboard? A touchscreen is a bit like an invisible keyboard glued to the front ...