How do I make my crossover active? How to Operate Active Audio Crossover Circuit? Provide +15V and -15V supply to the active crossover circuit from Dual power supply circuit. Apply the audio input to the circuit with the help of audio jack. Switch off the supply. Can you use active speakers as passive? But if […]
Are there male and female earthworms?
Are there male and female earthworms? Earthworms are hermaphrodites, meaning an individual worm has both male and female reproductive organs. Earthworm mating typically occurs after it has rained and the ground is wet. They emerge from the soil and jut out their anterior end. Do earthworms fertilize their own eggs? Earthworms are hermaphrodites (both female […]
What is the internal resistance of a 12v car battery?
What is the internal resistance of a 12v car battery? 0.02 ohms What is the internal resistance of the battery? Though the internal resistance may be or appear low, around 0.1Ω for an AA alkaline battery, and about 1Ω to 2Ω for a 9-volt alkaline battery, it can cause a noticeable drop in output voltage […]
What is a chemical property simple definition?
What is a chemical property simple definition? A chemical property is any of a material’s properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance’s chemical identity. They can also be useful to identify an unknown substance or to separate or purify […]
What element is not found in nature?
What element is not found in nature? Technetium. The first element that was synthesised, rather than being discovered in nature, was technetium in 1937. This discovery filled a gap in the periodic table, and the fact that no stable isotopes of technetium exist explains its natural absence on Earth (and the gap). What is a […]
What is kinetic theory of matter for Kids?
What is kinetic theory of matter for Kids? The kinetic molecular theory of matter states that: Matter is made up of particles that are constantly moving. All particles have energy, but the energy varies depending on the temperature the sample of matter is in. This in turn determines whether the substance exists in the solid, […]
What is the formula of packing efficiency?
What is the formula of packing efficiency? Packing efficiency can be written as below, Packing efficiency = Volume occupied by 6 spheres ×100 / Total volume of unit cells. Examples are Magnesium, Titanium, Beryllium etc. In body-centered cubic structures, the three atoms are arranged diagonally. Which crystal structure has the greatest packing efficiency? Crystal Structure: […]
What are the applications of uniform circular motion?
What are the applications of uniform circular motion? In uniform circular motion an object moves in circular path with constant speed and direction of motion changes every point of motion. Hence the motion is accelerated. Some of real life applications: –> Revolution of planets around sun. What is the formula for uniform circular motion? Therefore […]
Is the changing of liquid water to water vapor?
Is the changing of liquid water to water vapor? Evaporation – Evaporation happens when heat from the Sun turns liquid water into water vapor (gas). About 90% of the water in the atmosphere comes from evaporation. Most evaporation occurs in the oceans, because they cover so much of Earth’s surface. Why do we see droplets […]
Is fog caused by temperature inversion?
Is fog caused by temperature inversion? Sound is affected during fog conditions due to the small distances between water droplets, and air temperature differences. Temperature effect: A fog can be caused by a temperature inversion where cold air is pooled at the surface which helped to create the fog, while warmer air sits above it. […]