Everything that you plug into the wall works because the electric field is what moves electron from point A to point B. Any optical(mirror, lens, radar ....) device works because of property of light. Light is a EM wave, and most device bend or reflect light by manipulating how the electric field component of the light wave behave.
In 1820, Hans Christian Oersted (1777-1851) proved electric current can affect a compass needle. However,Oersted could not explain why.
An electric field can be represented diagrammatically as a set of lines with arrows on, called electric field-lines, which fill space. Electric field-lines are drawn according to the following rules: The direction of the electric field is everywhere tangent to the field-lines, in the sense of the arrows on the lines. The magnitude of the field is proportional to the number of field-lines per unit area passing through a small surface normal to the lines. Thus, field-lines determine the magnitude, as well as the direction, of the electric field. In particular, the field is strong at points where the field-lines are closely spaced, and weak at points where they are far apart. Electric Field intensity It was stated that the electric field concept arose in an effort to explain action-at-a-distance forces. All charged objects create an electric field which extends outward into the space which surrounds it. The charge alters that space, causing any other charged object that enters the space to be affected by this field. The strength of the electric field is dependent upon how charged the object creating the field is and upon the distance of separation from the charged object. In this section of Lesson 4, we will investigate electric field from a numerical viewpoint - the electric field strength. An electric field can be represented diagrammatically as a set of lines with arrows on, called electric field-lines, which fill space. Electric field-lines are drawn according to the following rules: The direction of the electric field is everywhere tangent to the field-lines, in the sense of the arrows on the lines. The magnitude of the field is proportional to the number of field-lines per unit area passing through a small surface normal to the lines. Thus, field-lines determine the magnitude, as well as the direction, of the electric field. In particular, the field is strong at points where the field-lines are closely spaced, and weak at points where they are far apart. Electric Field intensity It was stated that the electric field concept arose in an effort to explain action-at-a-distance forces. All charged objects create an electric field which extends outward into the space which surrounds it. The charge alters that space, causing any other charged object that enters the space to be affected by this field. The strength of the electric field is dependent upon how charged the object creating the field is and upon the distance of separation from the charged object. In this section of Lesson 4, we will investigate electric field from a numerical viewpoint - the electric field strength.
They explain the cause of earthquakes on Earth.
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Physics And Technology Partners in Progress
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Science can explain how thing happen. Example, science can explain why you can walk without slipping. Without science, there would be no technology. Technology can make what we do simpler. With the help of technology, everything is simpler.
explain with the help of diagram how free electron and hole contribute to electric curent
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If you want to study Technology as a career then you need to study at a University. They will be able to explain to you what parts of Technology they teach.
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WOULD YOU LIKE TO EXPLAIN WHAT IS LARGE CROP YIELDS
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