What are the methods of producing induced emf? The induced emf can be produced by changing : (i) the magnetic induction (B), (ii) area enclosed by the coil (A) and. (iii) the orientation of the coil (θ) with respect to the magnetic field. What is the use of induced emf? A motor has coils turning […]
What most likely caused the tilting of the Grand Canyon?
What most likely caused the tilting of the Grand Canyon? What most likely cause the tilting? Scientists believe that the boundary stratum between the Cretaceous and Paleocene periods were caused by an asteroid. Which organisms were most likely to survive the Cretaceous extinction? Birds: Birds are the only dinosaurs to survive the mass extinction event […]
What are the best electrodes for electrolysis?
What are the best electrodes for electrolysis? Steel and iron are the most commonly used for electrolysis of water. These electrodes are used as anode and it is sacrificed in electrolysis, as the anode rusts (get oxidized) and the cathode de-rusts (get reduced). What factors affect rate of electrolysis? There are many factors that affect […]
What type of smoke detector is best for kitchen?
What type of smoke detector is best for kitchen? Photoelectric smoke detectors Are heat detectors required in garages? Heat Detectors must be installed In any integral garage or attached garage. Which is better smoke detector or heat detector? Smoke alarms detect smoke – fit them in all rooms where a fire might start. But in […]
How can humans help pollution?
How can humans help pollution? Reduce the number of trips you take in your car. Reduce or eliminate fireplace and wood stove use. Avoid burning leaves, trash, and other materials. Avoid using gas-powered lawn and garden equipment. How can we reduce environmental degradation? 31+ Stunning Ways to Save the Environment from Destruction Change the way […]
When water evaporates What does it turn into?
When water evaporates What does it turn into? Evaporation happens when a liquid substance becomes a gas. When water is heated, it evaporates. The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor. How fast does a glass of water evaporate? 1.2 hours What are some real […]
Can electric current flow through human body?
Can electric current flow through human body? The human body is a good conductor of electric current simply because it is 70% water. Human tissue is very sensitive to the flow of electric current and is more susceptible to electric shock when wet. Does human body have current? Electricity is everywhere, even in the human […]
How does the working distance change when you increase the magnification?
How does the working distance change when you increase the magnification? Working distance is how much space exists between the objective lens and the specimen on the slide. As you increase the magnification by changing to a higher power lens, the working distance decreases and you will see a much smaller slice of the specimen. […]
What do liquid objects have in common?
What do liquid objects have in common? Liquids have the following characteristics: No definite shape (takes the shape of its container). Has definite volume. Particles are free to move over each other, but are still attracted to each other. Why doesn’t mass alone determine whether an object will float or sink? Density is the only […]
How do we know carbon dioxide is a greenhouse gas?
How do we know carbon dioxide is a greenhouse gas? This ability to absorb and re-emit infrared energy is what makes CO2 an effective heat-trapping greenhouse gas. Not all gas molecules are able to absorb IR radiation. For example, nitrogen (N2) and oxygen (O2), which make up more than 90% of Earth’s atmosphere, do not […]