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Will a static electron be influenced by a magnetic field.
May we say, therefore, that the electrons in a receiving antenna move only in response to the E-field of a passing wave?vanhees71 said:Well, if there's only a magnetic field in the restframe of the electron, there'll be no force on the electron (see the previous posting). But if the magnetic field is time-dependent there's also an electric field due to Faraday's Law,
$$\frac{1}{c} \partial_t \vec{B}+\vec{\nabla} \times \vec{E}=0.$$
Then, of course the force on the electron is the full Lorentz force,
$$\vec{F}=q \left (\vec{E}+\frac{\vec{v}}{c} \times \vec{B} \right ).$$
So then it will be affected. You have to always look at both the electric and the magnetic field. In fact, electric and magnetic fields are just a split of the one and only electromagnetic field into components with respect to an arbitrary inertial reference frame.NB: I always use Heaviside-Lorentz units, because they are the most natural ones for electromagnetism.
vanhees71 said:Well, if there's only a magnetic field in the restframe of the electron, there'll be no force on the electron (see the previous posting). But if the magnetic field is time-dependent there's also an electric field due to Faraday's Law,
$$\frac{1}{c} \partial_t \vec{B}+\vec{\nabla} \times \vec{E}=0.$$
What did you do with the charge? Doesn't it produce a field?
Electric fields are created by stationary or moving electric charges, while magnetic fields are created by moving electric charges or magnetic dipoles. Electric fields exert forces on other electric charges, while magnetic fields exert forces on other moving electric charges.
Electric and magnetic fields are closely related and are part of the larger electromagnetic force. A changing electric field produces a magnetic field, and a changing magnetic field produces an electric field. This is known as electromagnetic induction.
Yes, both electric and magnetic fields can be shielded. Electric fields can be blocked by materials with high dielectric constants, while magnetic fields can be blocked by materials with high magnetic permeability. However, complete shielding is difficult to achieve and depends on the strength and frequency of the fields.
Exposure to strong electric and magnetic fields can have various effects on living organisms, ranging from causing minor discomfort to potentially harmful health effects. Studies have shown that prolonged exposure to high levels of electric and magnetic fields can increase the risk of certain health issues, such as cancer and neurological disorders.
Electric and magnetic fields can be produced by a variety of natural and man-made sources. Some common sources include power lines, household appliances, electronic devices, and natural phenomena such as lightning and the Earth's magnetic field. The strength and frequency of the fields can vary depending on the source.