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Q: Why magnetic strength increases when distance decrease?
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When the distance from a charged particle decreases the strength of the electric field does what?

As the distance from a charged particle increases the strength of its electric field DECREASES.


Both electric fields and forces decrease in strength as the distance increases?

No. The electric force in this case decreases.


If you increase the number of turns in the coil and move a magnet at the same speed will the speed increase or decrease?

no the strength of the magnetic field does not decrease because of the number of coils increases.


What will happen when the number of turns of wire and the current flowing them increases?

The strength of the magnetic field inside the coil increases.


What is the relationship between the distance. From the magnet and the strength of the magnetic force?

Magnetic force is inversely proportional to the square of the distance from the magnet which generates it.


Will increasing the number of loops in a solenoid cause the strength of its magnetic field to decrease?

No; increasing the number of loops in a solenoid will cause the strength of its magnetic field to increase.


Why deflection of the magnetic needle placed in a coil carrying current increases as the number of turns in the coil increases?

Deflection of the magnetic needle placed in a coil carrying current increases as the number of turns in the coil increase because as the number of turns in the coil increases the strength of the magnetic field also increases.


How does distance affect the strength of the force gravity?

Force is inversely related to the square of the distance. Hence as the distance increases the force decreases.


How does distance affect the strength of force of gravity?

Force is inversely related to the square of the distance. Hence as the distance increases the force decreases.


How does distance affect magnetism?

Magnetic field strength (H) is defined as the magnetomotive force per unit length, and is expressed in amperes per metre (often spoken as 'ampere turns per metre') in SI. An older, and far more descriptive term, is 'magnetomotive force gradient'.The 'closeness' or intensity of a magnetic field's flux lines, on the other hand is termed magnetic flux density(B), expressed in teslas in SI.There is a complex relationship between magnetic field strength and flux density, because of a property exhibited by ferromagnetic materials, called 'hysteresis'. In general, as the magnetic field strength applied to a sample of unmagnetised ferromagnetic material increases, the resulting flux density also increases (but not linearly) until saturation is reached, at which point any further increase in magnetic field strength will have no effect whatsoever on the flux density. If the magnetic field strength is then reduced, the flux density will also reduce (again, not linearly), but when the magnetic field strength reaches zero amperes, a certain amount of flux density remains.So to answer your question, you really need to study what's known as the B-H or magnetising curve for a sample of ferromagnetic material -this will show you exactly what the relationship between magnetic field strength and flux density for any give ferromagnetic material.


Why the magnetic field strength of an electromagnet be reduced in decrease the number of loops in the coil?

Each coil contributes to the magnetic field, and the contributions of the individual loops all add up.


What is the limit for magnetic field developed for a DC machine?

The magnetic field used in machines is quantified in terms of its flux density (symbol: B), expressed in teslas. The flux density is established by the magnetic field strength (H), expressed in amperes per metre, set up in the field windings.As the magnetic field strength increases, the flux density increases until it reaches saturation. This is the point when the magnetic domains within the magnetic circuit are all aligned. At this point, any further increase in magnetic field strength will fail to increase the flux density.So saturation of the magnetic circuit limits the flux density of the field.