What is the difference between electric and magnetic field?

Wherever there is electricity, there are also electric and magnetic fields, invisible lines of force created by the electric charges. Electric fields result from the strength of the charge while magnetic fields result from the motion of the charge, or the current. Electric fields are easily shielded: they may be weakened, distorted or blocked by conducting objects such as earth, trees, and buildings,but magnetic fields are not as readily blocked. Electriccharges with opposite signs (positive and negative) at-tract each other, while charges with the same sign repeleach other. The forces of attraction and repulsion create electric fields whose strength is related to “voltage” (elec-trical pressure). These forces of attraction or repulsionare carried through space from charge to charge by the electric field. The electric field is measured in volts permeter (V/m) or in kilovolts per meter (kV/m). A group of charges moving in the same direction is called an “elec-tric current.” When charges move they create additional forces known as a “magnetic field.” The strength of a magnetic field is measured in “gauss” (G) or “tesla” (T),while the electric current is measured in “amperes” (amps).The strength of both electric and magnetic fields decreaseas one moves away from the source of these fields.

Electric Field Vs Magnetic Field

Electric Field And Magnetic Field

The area around a magnet within which magnetic force is exerted, is called a magnetic field. It is produced by moving electric charges. The presence and strength of a magnetic field is denoted by “magnetic flux lines”. The direction of the magnetic field is also indicated by these lines. The closer the lines, the stronger the magnetic field and vice versa. When iron particles are placed over a magnet, the flux lines can be clearly seen. Magnetic fields also generate power in particles which come in contact with it. Electric fields are generated around particles that bear electric charge. Positive charges are drawn towards it, while negative charges are repelled.

A moving charge always has both a magnetic and an electric field, and that’s precisely the reason why they are associated with each other. They are two different fields with nearly the same characteristics. Therefore, they are inter-related in a field called the electromagnetic field. In this field, the electric field and the magnetic field move at right angles to each other. However, they are not dependant on each other. They may also exist independently. Without the electric field, the magnetic field exists in permanent magnets and electric fields exist in the form of static electricity, in absence of the magnetic field.

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Electric and magnetic fields (EMFs) are invisible lines of force that represent

the boundary and the intensity that occur between objects with potential difference

or voltage (so called electric field) and that surround object with electric currents flow

(so called magnetic field). In some case, electric and magnetic field can be defined

together as electromagnetic fields or electromagnetic wave.

Electric and magnetic fields (EMFs) are invisible lines of force that represent

the boundary and the intensity that occur between objects with potential difference

or voltage (so called electric field) and that surround object with electric currents flow

(so called magnetic field). In some case, electric and magnetic field can be defined

together as electromagnetic fields or electromagnetic wave.

earth’s magnetic field, sun’s

rays, lightning, gamma rays, etc. & man made

he most basic difference between ionized and nonionized matter is the ability to carry electric current. This ability is also the reason why virtually all the matter in the universe is—and presumably has always been—magnetized. The presence of the magnetic field has important dynamical consequences since the magnetic force can locally be much greater than the gravitational force.

The ability of carrying current, which is the basis for the magnetization, is a property that is still not well known in the case of cosmical plasma. It can be different by many powers of ten from what classical theories predict.

Imagine a loop of a conductor, where the loop has a certain area. Then imagine a magnetic field flowing within the loop. Multiply the area of the loop times the strength of the field and you get some sense of the amount of magnetic strength within the loop (you actually have to do a vector multiplication,

If the amount of magnetic strength within this loop changes -- either through a change in the magnetic field OR in the area within the loop -- an electromotive force (EMF) is created within the loop. It turns out that EMF, potential difference, and voltage are all pretty much the same thing. The effect of the change of magnetic strength within the loop is to cause a current to be created within the loop. This is pretty much what happens with an electric generator; a loop is forced to spin while within a magnetic field, thus generating a voltage.

The potential difference between two points is the measure of the amount of energy necessary to move a unit charge between those two points. If there is a constant electric field (say, between two charged plates), there is a change in energy in moving a charge within that field. The electric field intensity does not change as the charge is moved, but the energy level does; and thus, there is a potential difference. A potential difference CAN arise due to a change in the electric field intensit

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RE:

What is the difference between electric and magnetic field?

Basically region around a magnet or a current carrying conductor is said to be magnetic field.

ulltimately whatever is causing magnetic field is nothing but charge again.

Its known that region around a charge is electric field , so the big question is how is magnetic field different from...

Some good answers here among some obtuse and even wrong ones. Specific to the exact wording of the question: the electric field goes out from the charge, and does not loop back upon itself. While the magnetic field itself is created by moving electric charge (but not the static electric field created by a stationary charge!), and always loops back upon itself.

This latter property is represented as one of Maxwell's/Heavisides' Equations. The equation in question states that the divergence of a magnetic field is equal to zero. This describes our current understanding that the magnetic field or lines do not originate from a point charge, unlike an electric field. And that, again, the magnetic field itself has no line ends, as the lines (or field) always forms a continuous loop back upon itself.

Magnetic field is generated by the net effect of magnetic moments ..contributed by the electrons of an atom..

While electric field can be generated by a static charge..and also a moving charge in a frame which is also moving with the same acc and velocity as that as the moving charge in the wire..

Strength of magnetic materials is determined as per the ability of the material to align its magnetic moments.

The next question ...that y doesnt a magnetic material affect an elecric charge is truly a question worth appreciating..

The reason is that a magnetic material is electrically neutral

Electric vs Magnetic fields

1. An electric field is a field of force, surrounding a charged particle, while a magnetic field is a field of force surrounding a permanent magnet, or a moving charged particle.

2. The strength of an electric field is expressed in Newtons per Coulomb, or Volts per meter, while a magnetic field strength is expressed in Gauss or Tesla.

3. The force of an electric field is proportional to the electric charge, while the magnetic field is proportional to the electric charge as well as the speed of the moving charge.

4. Electric and magnetic fields oscillate at right angles to one another.

Electric field is created by an electrostatic charge present in the universe.

it is a conservative force and the electric field lines goes out of the positive charge and end at negative charge

while a magnetic field is created by current that is moving charge.

it is a non conservative force and the field lines are continuous.

direction of field lines are seen by thumb rule which says that on putting thumb in the direction of current and then curling the fingers shows the direction of magnetic field lines.