Outside the dubious field of magnetic therapists, the terms 'positive' and 'negative' are not applied to magnetic polarities. Furthermore, we do not describe magnetic polarity as a 'charge'. However, magnetic poles and electric charges follow the same rule -i.e. like poles repel while unlike poles attract.
polar opposites attract. that's where the phrase "opposites attract" comes from.AnswerThere are no such things as 'positive' or 'negative' magnets, other than in the minds of magnetic therapists who seem to have very little scientific knowledge of magnetism! Magnetic poles, not magnets, are named after the directions in which the point when freely suspended -i.e. north and south.
Magnetic north is negative and magnetic south is positive. The resulting magnetic field lines go from north to south. Mnemonic: north = negative.AnswerThe terms, 'positive' and 'negative', are generally applied to electric charges, not to magnetic poles. Having said that, 'magnetic therapists' use the terms 'positive' and 'negative' when referring to magnetic poles -however, their knowledge of magnetism appears very shaky!Magnetic poles are normally identified as 'north' and 'south'. The 'direction' of a magnetic field, by convention, is the direction in which a compass needle would point when placed within that field -that is, from north to south.
It depends on what direction is considered positive and what direction is considered negative. For this case, I'll assume that up, right, and outward are positive and down, left, and inward are negative. Since the force is perpendicular to the magnetic field, the sign for the force depends on the direction of the current. If the current is inward and the magnetic field is to the left, then the force is upward and thus positive. If the current would be outward and the magnetic field would be still to the left, then the force is downward and thus is negative. The best way to think of this is to use the "right-hand" rule. Use your index finger to represent the direction of the current, your thumb as the direction of the force, and the other three fingers as the direction of the magnetic field direction.
Antimatter particles have the opposite electrical charge and magnetic characteristics compared to their matter counterparts. For example, the positron has a positive charge while the electron has a negative charge. Similarly, the magnetic properties of antimatter are opposite to those of matter.
The electric field is the negative gradient of the electric potential because it points in the direction of steepest decrease in potential. This relationship is based on the definition of potential energy as work done per unit charge. Negative gradient signifies the direction of decreasing potential with respect to position in space.
Electric forces are caused by the attraction or repulsion of electric charges, while magnetic forces are caused by the motion of electric charges.
Negative is the current magnetic charge of the Earth's South Pole.But such has not always been the situation. Scientists suggest that the charge changed from positive to the current negative about a million years ago. At the same time, the North Pole's magnetic charge changed from negative to its current positive.AnswerWe do not describe a magnetic pole as a 'charge', and the terms 'positive' and 'negative' are not applied to magnets. Magnetic poles are described as being 'north' and 'south', whereas electric charges are described as being 'positive' or 'negative'.Having said this, it should be mentioned that people involved with magneto therapy do describe magnetic poles as being 'positive' and 'negative', but this is a pseudoscience and much of its terminology is nonsense.
The electric field points from positive to negative.
That is not correct. Electric field lines originate from positive charges and terminate on negative charges. In the case of a uniform electric field, the field lines run from the positive plate to the negative plate.
"Negative" and "positive" are terms used with electrical forces, not with magnetic forces."Negative" and "positive" are terms used with electrical forces, not with magnetic forces."Negative" and "positive" are terms used with electrical forces, not with magnetic forces."Negative" and "positive" are terms used with electrical forces, not with magnetic forces.
In a given system, the electric field direction changes from positive to negative when the source of the electric field changes its charge from positive to negative.
Positive electric fields point away from positive charges and towards negative charges, while negative electric fields point towards positive charges and away from negative charges. In both cases, the direction indicates the direction that a positive test charge would move if placed in that field.
Electric fields point away from positive charges, while magnetic fields do not have a specific direction with respect to positive charges.
The two types of electric charges are positive and negative. Positive charges repel each other, as do negative charges, while positive and negative charges attract each other.
A magnetic field is created by moving electric charges. When electric charges move, they generate a magnetic field that exerts a force on other moving charges within the field. materials such as iron and nickel can also create magnetic fields due to the alignment of their atomic magnetic moments.
Nobody. Positive and negative electric changes exist from the earliest stages of the Big Bang.
perpendicular to each other. Electric waves oscillate in a direction parallel to the electric field, while magnetic waves oscillate in a direction perpendicular to both the electric field and the direction of propagation.