What happens if you pass electric current through a coiled conductor wire? Either an electric current is passed through the wire of the coil to generate a magnetic field, or conversely, an external time-varying magnetic field through the interior of the coil generates an EMF (voltage) in the conductor. The more turns of wire, the […]
What happens if a runner misses a base on a home run?
What is the relationship between temperature and height in the thermosphere?
What is the relationship between temperature and height in the thermosphere? The Thermosphere and Ionosphere The thermosphere lies above the mesopause, and is a region in which temperatures again increase with height. This temperature increase is caused by the absorption of energetic ultraviolet and X-Ray radiation from the sun. Is the thermosphere the hottest layer? […]
What is C in a ray diagram?
Can a substance be cooled to a temperature below its freezing point?
Can a substance be cooled to a temperature below its freezing point? Liquids have a characteristic temperature at which they turn into solids, known as their freezing point. In theory, the melting point of a solid should be the same as the freezing point of the liquid. It is possible, however, to cool some liquids […]
How do you calculate cfm of air flow?
How do you calculate cfm of air flow? To calculate Air Flow in Cubic Feet per Minute (CFM), determine the Flow Velocity in feet per minute, then multiply this figure by the Duct Cross Sectional Area. What are the different methods used for measuring air flow? The most common and easiest way to measure or […]
What makes a reaction dangerous?
What makes a reaction dangerous? Even slow reactions can be hazardous if they involve large amounts of material or if the heat and gases are confined, such as in a sealed storage drum. Drums that are swollen and distorted from over-pressurization are potentially very dangerous. They may rupture at any time without warning and release […]
What is the working principle of scanning electron microscope?
What is the working principle of scanning electron microscope? Scanning electron microscopes (SEMs) use an electron beam to image samples with a resolution down to the nanometer scale. The electrons are emitted from a filament and collimated into a beam in the electron source. The beam is then focused on the sample surface by a […]
What is the most important origin of life?
What is the most important origin of life? RNA World has been the prevailing theory for the origin of life since the 1980s. The emergence of a self-replicating catalytic molecule accounts for signature capabilities of living systems, but it doesn’t explain how the protobiological molecule itself arose. What is the Cosmozoic theory? Cosmozoic theory is […]
Why is power transmitted at high voltage?
Why is power transmitted at high voltage? The primary reason that power is transmitted at high voltages is to increase efficiency. The higher the voltage, the lower the current. The lower the current, the lower the resistance losses in the conductors. And when resistance losses are low, energy losses are low also. What are the […]