What are the two uses of electromagnet? Electromagnets are very widely used in electric and electromechanical devices, including: Motors and generators. Transformers. Relays. Electric bells and buzzers. Loudspeakers and headphones. Actuators such as valves. Magnetic recording and data storage equipment: tape recorders, VCRs, hard disks. MRI machines. Why is electromagnet important? Aritra G. Electromagnetism has […]
What is an example of a good hypothesis?
What is an example of a good hypothesis? Here’s an example of a hypothesis: If you increase the duration of light, (then) corn plants will grow more each day. The hypothesis establishes two variables, length of light exposure, and the rate of plant growth. An experiment could be designed to test whether the rate of […]
What are 2 facts about the geosphere?
What are 2 facts about the geosphere? The geosphere is the earth’s solid rock or rigid outer layer known as the crust. Without the geosphere it would not be possible for humans to live on the planet because there would be no solid ground. Included in the earth’s geosphere are the rocks, minerals, molten rock, […]
What happens when oil spills on land?
What happens when oil spills on land? As spilled oil on land prevents water absorption by the soil, spills on agricultural locations or grasslands have the effect of choking off plant life. Berms and trenches can be used to contain the spill, as long as their use does not allow the oil to leach into […]
Why do land breezes happen at night?
Could we manipulate the Higgs field?
Could we manipulate the Higgs field? If the discovery of the Higgs boson particle pans out, will even more mind-bending technologies result? Theoretically, it’s possible, says Arizona State University physicist Lawrence Krauss; but practically, it’s unlikely. “If you could manipulate the Higgs field locally, you’d have a great ‘Star Trek’ device. What exactly is the […]
Is it better to have a high or low coefficient of friction?
Is it better to have a high or low coefficient of friction? In short, rougher surfaces tend to have higher effective values whereas smoother surfaces have lower due to the friction they generate when pressed together. Most dry materials in combination have friction coefficient values between 0.3 and 0.6. Which coefficient of friction should I […]
What should a solenoid be wrapped around?
What should a solenoid be wrapped around? A solenoid [nb 1] is a coil wound into a tightly packed helix. In physics, the term solenoid refers to a long, thin loop of wire, often wrapped around a metallic core, which produces a magnetic field when an electric current is passed through it. How is an […]
What is one benefit of using tides for energy?
What is one benefit of using tides for energy? Advantages of tidal energy: longevity of equipment Tidal power plants can last much longer than wind or solar farms, at around four times the longevity. Tidal barrages are long concrete structures usually built across river estuaries. What are two benefits of using tides for energy? List […]