Category: Physics

When a parallel plate capacitor is being charged by a DC battery Why does a galvanometer? Answer Expert Verified During charging and discharging of the capacitor, there is a flow of charge from the battery towards the plates of the capacitor, which produces a conduction current in the circuit. Hence, the galvanometer present in the […]

Does snow make sounds? Snow can make both ‘squeaky’ and ‘crunchy’ sounds. Snow is a mixture of ice crystals, liquid water and air, and the sound it makes when you walk on it depends on the proportions of this mixture. When you walk on snow, your boots apply pressure that can break its ice crystals. […]

Why are evenings cooler than afternoons? Answer. Because in afternoon the sun is on the top and the rays of sunshine comes direct to the earth so we feel warmer and in morning and evening the sun is slightly to the earth so we feel colder then afternoon. Why does the coolest temperature of the […]

What are the origin of the universe? The best-supported theory of our universe’s origin centers on an event known as the big bang. This theory was born of the observation that other galaxies are moving away from our own at great speed in all directions, as if they had all been propelled by an ancient […]

Does the Fermi level depend on temperature? The experiment shows that the Fermi level decreases with increasing temperature and has almost the same temperature dependence as the energy gap. It is pinned at about 0.63 of energy gap below the conduction band. How is Fermi level calculated? You can use our Fermi level calculator to […]

Which country has the best destroyers? Military > Navy > Destroyers: Countries Compared # COUNTRY AMOUNT 1 United States 62 2 China 27 3 India 15 4 Russia 14 What is the most heavily armed ship? Yamato-class Battleship Ford-class may be the most heavily armed ships by modern standards, but if one is to simply […]

Is Internet a secondary source? The Internet is currently a component of the secondary data sources, one of the possible secondary data sources. The use of the Internet as a secondary source of data means both advantages and disadvantages; the qualities of the Internet should not be overvalued, although they exist. Which is an example […]

How can we use the solar energy? Solar energy is used today in a number of ways: As heat for making hot water, heating buildings and cooking. To generate electricity with solar cells or heat engines. To take the salt away from sea water. To use sun rays for drying clothes and towels. It is […]

Are 2s and 2p degenerate? The 2s and 2p orbitals have the same energy for hydrogen. They are said to be degenerate energy levels, all the same. When the electron is held in the 1s orbital, it is said to be in its ground state, its lowest energy state. When the electron is a higher […]

Where is a magnetic field the weakest? equator What makes a magnet stronger or weaker? Most substances have an equal number of electrons spinning in opposite directions, which cancels out their magnetism. These substances have high magnetic permeability and make the strongest magnets. Iron, cobalt and nickel are among these substances. Neodymium iron boron (NdFeb) […]