What is the principle of DC generator *? DC generator operates on the principle of the dynamically induced electromagnetic force. When a conductor is placed in a varying magnetic field, an electromotive force gets induced within the conductor. This induced e.m.f magnitude is measured using the equation of the electromotive force of a generator. What […]
Is Colour change a physical or chemical property?
Is Colour change a physical or chemical property? Color. The changing of color of a substance is not necessarily an indicator of a chemical change. For example, changing the color of a metal does not change its physical properties. However, in a chemical reaction, a color change is usually an indicator that a reaction is […]
What transverse wave has the shortest wavelength?
What transverse wave has the shortest wavelength? violet light Are light waves transverse? Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave’s advance. Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse […]
What happens if an egg does not fertilize?
What happens if an egg does not fertilize? If the egg is not fertilized or does not implant, the woman’s body sheds the egg and the endometrium. This shedding causes the bleeding in a woman’s menstrual period. When a fertilized egg does implant, a hormone called human chorionic gonadotropin (hCG) begins to be produced in […]
Why do electrons have spin?
Why do electrons have spin? Because electrons of the same spin cancel each other out, the one unpaired electron in the atom will determine the spin. There is a high likelihood for either spin due to the large number of electrons, so when it went through the magnetic field it split into two beams. What […]
What are the applications of soft and hard magnetic materials?
What are the applications of soft and hard magnetic materials? They are used in electrical rotating machine, electromagnet, electrical machine and transformer. It is used in communication equipment such as audio transformer, recording heads and magnetic modulators because of high initial permeability in feeble fields. They also possess low hysteresis and eddy current losses. Which […]
Where is nitrogen found?
Where is nitrogen found? Nitrogen, the most abundant element in our atmosphere, is crucial to life. Nitrogen is found in soils and plants, in the water we drink, and in the air we breathe. How bad is nitrogen for you? Excess nitrogen in the atmosphere can produce pollutants such as ammonia and ozone, which can […]
Do you really need noise Cancelling headphones?
Do you really need noise Cancelling headphones? Are noise-cancelling headphones worth it? Yes. If you wish to protect your hearing, reduce environmental distractions, and enjoy a better audio experience, then this technology will surprise you with its impactful results. Is Noise Cancelling safe? So, Is Noise-Canceling Safe? The short answer is, yes. Noise-canceling headphones, on […]
What Colour surface is best at absorbing infrared radiation?
What Colour surface is best at absorbing infrared radiation? Dark What Colour is the best absorber of radiation? black How can you tell the difference between good and bad emitters of infrared radiation? Good emitters of IR (infra-red) radiation are also good absorbers. Matt, black surfaces are the best emitters and absorbers; and shiny, light […]
Is francium used in bombs?
Is francium used in bombs? Because the alkali metals react viciously with water, a huge explosion will result when the two substances are combined, especially with the heavier alkalis like cesium and francium. This is the explosion necessary for our francium Bomb. First off, francium is highly rare. Why is francium dangerous? Useful to Scientists […]