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First, a uniform electric field is given, and its electric field strength is e0Then we put in an uncharged conductor. Then because the electric potential at both ends of the conductor is not the same, it will cause its internal charge to move, the positive charge to the low potential, and the negative charge to the high potential.
The original electrostatic equilibrium is broken, and when a new equilibrium is reached, the charges at both ends of the conductor form an additional electric field e'. After equilibrium, this e' = e0 and the direction is reversed. If it is not equal, then it is equivalent to the existence of an external electric field, and the charge will still move, and it will not reach equilibrium, which contradicts the premise.
At this time, the electric field inside the whole conductor is formed by the superposition of the external electric field e0 and the additional electric field e', and its sum is 0The electric potential of the surface is equal, but not 0It is worth noting that due to electrostatic induction, the conductor is electrified, then its electric field is superimposed with the uniform electric field, and the electric field of the whole space is no longer uniform and needs to be recalculated.
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It is formed by the magnetic force of electricity.
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With 280 lightning storms per hour and 1.2 million per year, how did the strongest lightning storm on Earth form?
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For example, every time the sun flares up, it releases a lot of energy, and a lot of it belongs to electromagnetic waves, which can be described in human adjectives, and there are too many electromagnetic waves, which are called electromagnetic storms, and it can also be understood in this way, and the electromagnetic waves emitted by the sun are called solar winds, and when they are strong, they are called solar storms, because they are electromagnetic waves, and they can also be called electromagnetic storms.
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The energy of the solar system is endless, and when the solar wind arrives in the summer, a magnetic storm will occur, and the magnetic storm is likely to interfere with the electromagnetism on the ground orange and locust ball. This can lead to the failure of many cell towers.
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Once a magnetic storm occurs, it will interfere with short-wave radio communication and affect the operation of magnetic equipment.
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It is very large and will not only interfere with communication equipment such as radio waves, but also affect the environment and human activities, so it is very harmful.
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The sun is a fiery fireball that radiates tremendous energy in all directions. When sunspots are intensely active, they emit energy equivalent to the power of millions of atomic bombs**, and at the same time eject a large number of charged particles, which also have a strong magnetic field around these streams of charged particles. When these charged particles flow to the earth, the strong magnetic field formed will cause the three elements of geomagnetic to change strongly and sharply, which forms a magnetic explosion.
With the occurrence of the magnetic explosion, there was a series of strange phenomena mentioned above. Scientists have found that the most intense magnetic explosion occurs once in more than 10 years.
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Electromagnetic waves are a form of motion in an electromagnetic field. Electricity and magnetism can be said to be two sides of the same coin, a changing electric field will produce a magnetic field (i.e., an electric current will produce a magnetic field), and a changing magnetic field will produce an electric field. The changing electric field and the changing magnetic field constitute an inseparable unified field, which is the Sunkuan electromagnetic field, and the changing electromagnetic field forms electromagnetic waves in the propagation of space, and the electromagnetic changes are like water waves generated by the breeze blowing on the water surface, so they are called electromagnetic waves, and are often called radio waves.
Electromagnetic waves were first developed by James Maxwell in 1865** and then confirmed by German physicist Heinrich Hertz in experiments between 1887 and 1888. Maxwell derived the electromagnetic wave equation, a wave equation that clearly shows the wave nature of the electric and magnetic fields coming out of the spike ridge. Because the electromagnetic wave velocity of the electromagnetic wave equation ** is equal to the measured value of the speed of light, Maxwell deduced that light waves are also electromagnetic waves.
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First of all, there is a condition for magnetic electricity, there must be a loop of wires, and at the same time, there must be a cutting magnetic inductance line movement to generate electricity. Magnetic storms are high-energy charged particles ejected by solar activity that disturb the earth's magnetic field and cause the compass to malfunction, and the conditions for the formation of electric storms are insufficient, and there seems to be no natural phenomenon of electric storms.
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It was supposed to explode together. How about disrupting communications?
Why can we generate electricity through the relative motion of a wire and a magnet (by wrapping a closed wire into a rectangle and rotating it between the magnetic fields formed by the two poles, we can generate an electric current in the wire)? And why can we wrap a coil around the core to make a magnetic electromagnet? This is because there is a connection between magnetism and electricity. >>>More
Electromagnetic waves have mass, of course, if they are moving. >>>More
Most electromagnetic waves.
Be able to go through the walls, otherwise you wouldn't have heard a cell phone signal at home, a radio. >>>More
Q1: What is electromagnetic wave? How many types of electromagnetic waves are there? Does it have any effect on the human body? >>>More
Characteristics of electromagnetic waves:
a.Electromagnetic waves propagate in all directions in space; >>>More