How depletion region is formed in pn junction? Movement of electrons to the p-type side exposes positive ion cores in the n-type side while movement of holes to the n-type side exposes negative ion cores in the p-type side, resulting in an electron field at the junction and forming the depletion region. When depletion region […]
Do trees grow out of the air?
Do trees grow out of the air? But the truth is, trees are actually formed largely out of the air. (Yes, air!) Trees, and all photosynthesizing plants, use the energy of the sun to split atmospheric carbon dioxide into its constituents: oxygen and carbon. And carbon is the primary building block of the tree — […]
How do I test my water table level?
How do I test my water table level? The most reliable method of obtaining the depth to the water table at any given time is to measure the water level in a shallow well with a tape. If no wells are available, surface geophysical methods can sometimes be used, depending on surface accessibility for placing […]
How the body gets rid of waste?
How the body gets rid of waste? Body Waste: Urine In your body, the excretory system helps to keep salts and urea from building up to dangerous levels and becoming toxic. The kidneys are two bean-shaped organs that remove these toxins from your blood and produce urine to carry them from the body. Why is […]
What type of material does not allow any light to pass through?
What type of material does not allow any light to pass through? opaque Which surface is best at reflecting light? glass mirror Why can light pass through some materials and not others? Opaque materials do not allow transmission of light waves. In other words, we can’t see through an opaque object. We can only see […]
How does input make an output?
How does input make an output? How does input make an output? The computer sits between the input and output devices. A computer program processes and digitises the input information. The result is then sent to an output device such as a screen. What is an input-output diagram? Input-output diagrams are the first step in […]
What period in the periodic table is iron found in?
Why are steam engines inefficient?
Why are steam engines inefficient? Steam engines are extremely inefficient, wasting around 80–90 percent of all the energy they produce from coal. That means they have to burn enormous amounts of coal to produce useful amounts of power. It’s inefficient because energy is wasted as the heat and steam travel from the fire, via the […]
What is your availability start?
What is your availability start? Applicants are often asked what date they are available to start work if they were to be hired. The most common time frame for starting a new position is two weeks after you have accepted the job offer. Should I put my availability on my resume? 12) Availability Save the […]
What is the source of the energy released in fission and fusion reactions?
What is the source of the energy released in fission and fusion reactions? Nuclear Fusion reactions power the Sun and other stars. In a fusion reaction, two light nuclei merge to form a single heavier nucleus. The process releases energy because the total mass of the resulting single nucleus is less than the mass of […]