Category: Physics

How is flux generated? When a coil of wire is moved through a magnetic field a voltage is generated which depends on the magnetic flux through the area of the coil. Electric motors and generators apply Faraday’s law to coils which rotate in a magnetic field as depicted in Figure 3. In this example the […]

How can you tell if granite is real? How to Tell If Granite Is Fake or Real Observe the Pattern and Coloration. Look at the overall pattern and colors of the countertop. Tap on the Surface. Tapping lightly on the surface of the countertop with something metal like the ball end of a hammer can […]

What is the meaning of sensible heat? Sensible heat is heat exchanged by a body or thermodynamic system in which the exchange of heat changes the temperature of the body or system, and some macroscopic variables of the body or system, but leaves unchanged certain other macroscopic variables of the body or system, such as […]

Are switch loops legal? Under the new requirement you can still do a switch loop as long as there is a neutral. So if you’re going to do a switch loop it has to be done with 12/3 or 14/3, and just cap off the neutral at the switch. Are 3-Way switches required by code? […]

How is the law of definite proportions important? The law of definite proportions dictates that a name is always associated with a specific ratio of elements found in a chemical compound. If the ratio of elements is different from that specific ratio then it is not the same compound and therefor has a different name. […]

Do 2 of the same elements make a compound? A compound is a unique substance that forms when two or more elements combine chemically. A compound always consists of the same elements in the same ratio. If the same elements combine in different ratios, they form different compounds. Types of compounds include covalent and ionic […]

Can you hack radio frequency? In fact, some hackers are even capable of using radio signals to hack into an unconnected device and steal confidential corporate data. Researchers in Israel have developed a technology that extracts information from a machine using radio frequencies and wireless communications. What are the basics of radio? Radio waves are […]

Where can you find lava? Here are eight spots around the globe where you can watch lava flow. of 8. Volcanoes National Park, Hawaii. of 8. Erta Ale, Ethiopia. of 8. Mount Nyiragongo, Democratic Republic of the Congo. of 8. Mount Etna, Italy. of 8. Pacaya, Guatemala. of 8. Villarrica, Chile. of 8. Mount Yasur, […]

Why does dew point increase with temperature? The dew point is the temperature the air needs to be cooled to (at constant pressure) in order to achieve a relative humidity (RH) of 100%. At this point the air cannot hold more water in the gas form. The higher the dew point rises, the greater the […]

What is a disadvantage of asexual reproduction? The disadvantage of asexual reproduction is that organisms do not receive a mix of traits from both parents. An organism that is born through asexual reproduction only has the DNA from the one parent. In fact, the offspring is genetically an exact copy of the parent. What are […]