Frequent question: Why is electric force equal to magnetic force?

Both are related to motion of charges but motion in different direction. Static charge is “moving in time, but not in space” and it produces only electric field. Moving charges move both in time and space and they produce both electric and magnetic field. This is all nicely unified in relativity.

Is magnetic force equal to electric force?

When the electric force is nearly equal to the magnetic force. In the case of static fields, the electric and magnetic fields can be adjusted independently. So you can just adjust them such that the electric and magnetic forces (on whatever object you are studying) are equal.

How are electric and magnetic forces the same?

3) Electricity and magnetism are essentially two aspects of the same thing, because a changing electric field creates a magnetic field, and a changing magnetic field creates an electric field. (This is why physicists usually refer to “electromagnetism” or “electromagnetic” forces together, rather than separately.)

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Why is magnetic force perpendicular to electric force?

The superficial answer is simply that the Lorentz (magnetic) force is proportional to v×B, where v is the particle velocity and B is the magnetic field. Since the vector cross product is always at right angles to each of the vector factors, the force is perpendicular to v.

Is electric force always greater than magnetic force?

The force acting on charged particle consists of two parts. The one created by electric field is independent form particle velocity, while the Lorentz force is proportional to particle velocity. Thus at v=0 the electric part of force acting on particle is infinitely stronger than magnetic part.

Is magnetic field and magnetic force same?

Two objects containing charge moving in the same direction have a magnetic attraction force between them. The space or the region around a magnet within which magnetic force is exerted on other magnet is called the magnetic field. …

Do both electric and magnetic forces depend on motion explain?

Force due to both electric and magnetic forces will influence the motion of charged particles. However, the resulting change to the trajectory of the particles will differ qualitatively between the two forces.

How can electric force create a magnetic force?

Since electricity can be turned on and off, so can an electromagnet. Electromagnets are usually made from wire that is wrapped in coils around an object made of iron. When the electromagnet is on, it creates a magnetic force that can pull on magnetic things.

What is unique about the magnetic force as compared to the electric and gravitational forces?

The key difference between gravitational force and magnetic force is that gravitational force acts on all the things that have a mass whereas magnetic force acts on things having iron or an electric charge on them.

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Why is current perpendicular to a magnetic field?

Since compasses work by pointing along magnetic field lines, this means that there must be a magnetic field near the wire through which the current is flowing. The magnetic field produced by an electric current is always oriented perpendicular to the direction of the current flow.

Are the force and magnetic field always perpendicular?

The force exerted on a charge moving in a magnetic field is always perpendicular to both the velocity and the field. Any force perpendicular to the velocity can not change the speed (or the kinetic energy).

Is magnetic force always perpendicular to magnetic field?

Magnetic force is always perpendicular to the magnetic field.

Why is electric field stronger than magnetic field?

The electric field is produced by stationary charges, and the magnetic field by moving charges (currents); these two are often described as the sources of the field. … The force created by the electric field is much stronger than the force created by the magnetic field.

Which of the two forces is stronger magnetic force or electric force?

An electric force is a force of attraction or repulsion between charged particles, which have unequal numbers of protons and electrons. … Similar to electric charges, opposite poles attract, and like poles repel. The stronger the magnets and the closer together they are, the stronger the magnetic force between them.

What is difference between electrostatic force and magnetic force?

Electrostatic force is apply by a charged body while magnetic force is applied by a magnet. Magnetic forces are always normal to the direction of the velocity of the charge it acts upon, whereas electric force are independent of the direction the charge moves in. …

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