Maxwell's hypothesis about electric magnetic fields
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The Maxwell hypothesis provides conclusions about the electrical and magnetic interfaces. Electrical symptoms and magnetism are closely related to each other. The Maxwell hypothesis looks at the following symptoms.
Read also : Electric Field Changes Cause Magnetic Field
Dynamos are composed of magnets and wire loops around them. When the magnet moves around the winding, it causes the current to flow. Let us observe the needle of the compass near the electric current, the compass needle will deviate from the original position. This means that the compass needle gets the magnetic pull of the electrically powered cable.
According to Maxwell's calculations, the speed of propagation of electromagnetic waves depends only on two magnitudes, namely electrical permittivity (ε o) and magnetic permeability (μ o). Mathematically can be written as follows.
We know that, the value of 8,85 × 10–12 C2/Nm2 and the value of μo is 12,60 x 10–6 wb/Am. If both of these values we enter into the above equation, then obtained the value of electromagnetic wave velocity of 3 × 1018 m/s.. This velocity is equal to the large speed of the propagation of light in a vacuum based on the maxwell hypothesis.
- The electric field charge can produce an electric field around it, the magnitude shown by Coulumb's law.
- An electric current or a flowing charge can produce a large magnetic field around it and its direction is indicated by the law of Bio-Savart or Ampere's law.
- Changes in magnetic fields can induce an induced GGL that can generate an electric field with rules provided by Faraday's induction law.
Read also : Electric Field Changes Cause Magnetic Field
Dynamos are composed of magnets and wire loops around them. When the magnet moves around the winding, it causes the current to flow. Let us observe the needle of the compass near the electric current, the compass needle will deviate from the original position. This means that the compass needle gets the magnetic pull of the electrically powered cable.
Maxwell's hypothesis
Maxwell proposes a hypothesis that the magnetic field changes in the dynamo can generate an electric field and vice versa changes in the electric field can create a magnetic field. The experiments that Maxwell used in his hypothesis were two basses of insulators tied to the ends of the spring. Both bools are given different electric charges, ie, positive and negative charges. The electrical changes given to the spring against time will produce different magnetic fields.The chain process of the electric field changes and the wave-shaped magnetic field radiates in all directions. These waves are called electromagnetic waves. These waves may be the light of radio waves, X-rays, gamma rays or others. This can be illustrated as a quiet water bath with little touch, then the waves spread in all directions. Electromagnetic waves are composed of the electric field propagation of E and the magnetic field B are perpendicular to each other. Notice the following picture:
Mathematical Equations In Maxwell Hypothesis
According to Maxwell's calculations, the speed of propagation of electromagnetic waves depends only on two magnitudes, namely electrical permittivity (ε o) and magnetic permeability (μ o). Mathematically can be written as follows.
We know that, the value of 8,85 × 10–12 C2/Nm2 and the value of μo is 12,60 x 10–6 wb/Am. If both of these values we enter into the above equation, then obtained the value of electromagnetic wave velocity of 3 × 1018 m/s.. This velocity is equal to the large speed of the propagation of light in a vacuum based on the maxwell hypothesis.
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