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### Why is magnetic field vector perpendicular to magnetic force vector? [duplicate]

So recently in physics class, we learned about the magnetism right hand rules. One of them states that the index finger points in the direction of the velocity of a particle, the middle finger ...
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### Why is there no change in speed of a charged particle in a uniform perpendicular magnetic field? [duplicate]

When the initial velocity is perpendicular to the magnetic field, the force acting on the charged particle F = qvBsin(theta) ...
1 vote
2k views

### What causes a charged particle to follow circular motion in a magnetic field? [duplicate]

I would like to know why particles follow a circular path in a magnetic field, what path they trace and how this path is measured and controlled?
1 vote
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### What is the physical explanation of the statement "magnetic force is vector product of velocity of charged body and magnetic field"? [duplicate]

If a charged particle is projected under the influence of magnetic field, magnetic force acts perpendicularly with both the direction of magnetic field and velocity of particle. The direction can be ...
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### Is there an underlying physical reason why the Coriolis force is similar to the magnetic component of the Lorentz force?

I couldn't help but notice that the expression for the magnetic component of the Lorentz force, $$\mathbf F = q\,\mathbf v \times \mathbf B\,,$$ is very similar in its mathematical form to the ...
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### Why don't stationary charge feel force from a current carrying wire?

The current carrying wire doesn't apply any magnetic force on nearby charge $q$( positive stationary charge) because it has 0 velocity in lab frame. We found that there is no force on q by wire. But ...
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### Why do charged particles follow magnetic field lines?

This may seem like a dumb question, but I can't think of the answer. The context I am curious about is the solar wind. Specifically particles flowing out of coronal holes and following the magnetic ...
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### Why or how is cross product used?

I do not understand how does the result of two vectors acting on a particle require me to take the cross product to find the resultant. Won't the actual force on the particle be the result of the ...
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### Action-reaction pairs with electromagnetic waves

Suppose that a tower is releasing radio waves. These waves are received by an antenna. The radio waves apply force to the electrons in the antenna. My question is that by newton's third law, every ...
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### Lorentz force not experienced when current is parallel to magnetic field; why?

Lorentz force is not experienced when the current flows parallel to the magnetic field. Now, can someone explain me the reason to this? I can't understand this.
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I am a high school student and I would like to know why in a magnetic field the Force, $F$, is equal to $BIL\sin(\theta)$, where $\theta$ represents the angle between the magnetic field and the ...