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What is the build up of a positive or negative electric charge on a materials surface?
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∙ 15y ago
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∙ 13y ago
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A shortage of electrons on a surface creates an electric what?
A shortage of electrons on a surface creates an electric what?
What were electrical storms called?
The electric storm is commonly known as thunder.In an electrical storm, the storm clouds are charged like giant capacitors in the sky. The upper portion of the cloud is positive and the lower portion is negative. How the cloud acquires this charge is still not agreed upon within the scientific community. However, it could be explained as follows:When there is a charge separation in a cloud, there is also an electric field that is associated with the separation. Like the cloud, this field is negative in the lower region and positive in the upper region. The strength or intensity of the electric field is directly related to the amount of charge buildup in the cloud. As the collisions and freezing continue to occur and the charges at the top and bottom of the cloud increase, the electric field becomes more and more intense. it is so intense, in fact, that the electrons at the earth's surface are repelled deeper into the earth by the strong negative charge at the lower portion of the cloud. This repulsion of electrons causes the earth's surface to acquire a strong positive charge. The strong electric field, being somewhat self-sufficient creates a conductive path for the negative cloud bottom to contact the positive earth surface.
What are the unique characteristics of water?
One is that the water molecule is polar. It has a positive and a negative side. The polar attraction of the molecules explains the surface tension of water.
What is a neutral electric charge?
A uniform electric field has symmetrical and constant field effect throughout the region is permeates. Or in easier language, the test charge should encounter constant force through out the region when the electric field is uniform or constant. So, according to your query the uniform field is there, where the effect of the uniform is constant.
What are the factors affecting the surface tension?
The main factor is the strength of cohesion between molecules. For instance, water molecules have a slightly negative and a slightly positive end which makes them stick together like magnets. A molecule with more extreme positive and negative charges would have a stronger surface tension.
A shortage of electrons on a surface creates an electric what?
A shortage of electrons on a surface creates an electric what?
How do you decide which number is greater when one number is negative and one number is positive?
ANY positive number is greater than any negative number. Imagine you are digging a hole, and piling up the dirt you remove from the hole. The hole represents negative numbers- it goes lower than the surface. The piled up dirt represents positive numbers- it is higher than the surface. The surface is zero- neither positive or negative.
Why does static electricity charge with wool?
Static electricity is the buildup of electrical charges on the surface of some object or material. Static electricity is usually created when materials are pulled apart or rubbed together, causing positive (+) charges to collect on one material and negative (−) charges on the other surface. Results from static electricity may be sparks, shocks or materials clinging together.
What are Polar and non-polar components of the surface energy?
When the component has positive and negative output (legs) such as LEDs
What is the radius of curvature for concavoconvex?
It is positive for one surface, negative for the other. Subject to that, the radii can have have any values.
Earth's surface has an excess amount of negative charge?
Yes the Earth has a vertical electric field that points down. So if you were to try and calculate the amount of excess charge on the Earth's surface, you would get a negative value.
What is nodal surface?
A surface where the amplitude of a standing wave changes sign (negative becomes positive and vice versa) and the probability to find an elctron is zero..:)
What were electrical storms called?
The electric storm is commonly known as thunder.In an electrical storm, the storm clouds are charged like giant capacitors in the sky. The upper portion of the cloud is positive and the lower portion is negative. How the cloud acquires this charge is still not agreed upon within the scientific community. However, it could be explained as follows:When there is a charge separation in a cloud, there is also an electric field that is associated with the separation. Like the cloud, this field is negative in the lower region and positive in the upper region. The strength or intensity of the electric field is directly related to the amount of charge buildup in the cloud. As the collisions and freezing continue to occur and the charges at the top and bottom of the cloud increase, the electric field becomes more and more intense. it is so intense, in fact, that the electrons at the earth's surface are repelled deeper into the earth by the strong negative charge at the lower portion of the cloud. This repulsion of electrons causes the earth's surface to acquire a strong positive charge. The strong electric field, being somewhat self-sufficient creates a conductive path for the negative cloud bottom to contact the positive earth surface.
Ruled surface has negative Gaussian curvature-How can I prove this?
In each point, there is a line. The curvature of the surface in this direction is zero. Therefore the maximum curvature is positive and the minimum is negative. Gauss curvature in this point is the product of this max and min, and therefore is negative (or zero).
What is the meaning of cathode?
The part of a voltaic battery by which the electric current leaves substances through which it passes, or the surface at which the electric current passes out of the electrolyte; the negative pole; -- opposed to anode.
What is the medical term for no antigen blood?
Red blood cells with an antigen on their surface are said to be Rh positive, Rh+. Rh negative, or Rh-, do nothave the surface antigen.
What are three facts about electric field lines?
1. Electric field lines of force originate from the positive charge and terminate at the negative charge. 2. Electric field lines of force can never intersect each other. 3. Electric field lines of force are not present inside the conductor, it is because electric field inside the conductor is always zero. 4. Electric field lines of force are always perpendicular to the surface of conductor. 5. Curved electric field lines are always non-uniform in nature.
