0
If the strength of the magnetic field at B is 6 units the strength of the magnetic field at A is?
Wiki User
∙ 10y ago
3 units
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What is Magnetic field on the axis of a current carring circular coil?
A current circulating in a hollow copper coil (solenoid) produces a magnetic field equal to the permeability times the turns density times the current. B = μ x n x I * B is the magnetic field measured in Tesla * μ is the relative permeability of the solenoid's core which is air in this example and have a value approximated to 1.25663706E-6 * n is the turns density which equals the number of turns divided by the solenoid length n = N/L where L is measured in meters. * I is the current flowing within the solenoid and measured in Amperes
How to reduce residual magnetism?
Usually the term "residual magnetism" is used in referring to the weak, leftover magnetic force remaining in field coil poles in generators. These generators can be the automotive type, but can also be any other type of generator in which a Direct Current is used in a series of field windings wrapped around field cores to produce magnetic fields around a rotating armature with the purpose of producing electricity from mechanical motion (the rotating armature). The field winding poles/cores are made of iron, and after the generator has been run a few seconds under load, will retain a weak magnetic field even after the generator has been shut down. This is the "residual magnetism". The majority of older-design generators depend upon this weak, leftover field to restart the voltage produced in the armature, rather than the voltage regulator depending upon a battery to restart the generator field magnetism. Residual magnetism gets weaker over time; the time depends in part on the quality of the field pole piece and and how strong the current applied to the field coils was at the time the generator was stopped. To temporarily restore the residual magnetic field, current will need to be applied to the field circuit BRIEFLY; completely disconnecting the generator will be required. Connecting a 6 volt "lantern battery" in the proper polarity across the field winding circuits for a few seconds will establish a residual magnetic field in each field coil/windingzperiodz Proper polarity is critical: backwards polarity will create backwards residual magnetic fields, and the generator will produce backwards-polarity electricity when the armature is spun.
What happens when magnetic fields overlap?
Magnetic and electric fields exist nearly everywhere, and the following is a brief description of what these fields are, how they are created, and what effects they produce. The concept of an "electric field" arose when electrons were observed to repel other electrons but attract protons. This attraction-repulsion was actually seen before the discovery of electrons or protons; early measurements studied the forces on objects that happened to acquire an excess or deficiency of electrons after being rubbed with cloth or fur. If two electrons are separated by one centimeter, each electron will experience a repulsive force of 2.3 x 10-24 gram-equivalents. Doubling the separation will reduce the force to one quarter. Doubling the number of electrons on one side will double the repulsive force acting on the lone electron on the other side. Most matter is neutral, so it contains an equal number of protons and electrons . However, sometimes electrons are deliberately or accidentally removed from one object, and deposited onto another object. If a proton (or other positive-charged body) is placed near these two charged objects, the proton will be attracted to the negative object, which has excess electrons, and simultaneously repelled from the positive one, which is missing some electrons. The total force acting on the proton is a measure of the electric field that the proton is exposed to. The direction of the force that acts on the proton is the same as the direction of the electric field and the strength of the force is proportional to the strength of the electric field. (The force that acts on the proton, in gram-equivalents, multiplied by 6 x 1016, gives the electric field in units of volts per meter or V/m.) If an electron were substituted for the proton, the force would be of the same strength but in the opposite direction of the electric field. If two protons "tied" together were substituted for the single proton, they would experience twice as much total force.
What is true north compared to magnetic north?
true north is the direction towards the Geographic north pole, the point on the globe exactly 90 degrees north of the equator, and thru which the earth's rotational axis meets the surface. Magnetic north is the direction towards the magnetic north pole which is predicted* to be located at 82.7 degrees north latitude, and 114.4 degrees west longitude (just north of Canada). Magnetic north is where a compass actually points to, so you must adjust your compass acordingly. *this is predicted because magnetic drift causes the pole to move from year to year.
What are the neutrons masses in atomic mass units?
Proton: 1,007 276 466 77(10) atomic units of mass (u) Neutron: 1,008 664 915 6 (6) atomic units of mass (u) Electron: 5,485 799 094 3(23).10-4 atomic units of mass (u)
How many units in one bottle red wine?
if its 12% I've read its between 9 and 10 units
What are the 6 pieces of evidence that prove the continents were once connected?
Shape, fossil animals and plants, magnetic field reversals, residual magnetic fields of rocks, subduction zones.
Which is stronger the gravity on earth or the moon?
The gravitational field strength (how strong gravity is) on the Earth is 6 times stronger than on the moon.
What is the perimiter of a square if the area is 36?
If the area is 36 square units, the square is 6 units by 6 units. The perimeter is 4 x 6 units = 24 units.
How many units from -6 to plus 4?
10 units ------------------------------------------------ 4 - -6 = 4 + 6 = 10 On a number line: You need to go 6 units from -6 to 0, and then another 4 units from 0 to 4 making 6 + 4 = 10 units in total.
What is the volume of a rectangular prism that is 6 units by 4 units by 2 units?
A rectangular prism that is 6 units by 4 units by 2 units has a volume of 48 cubic units.
What is Magnetic field on the axis of a current carring circular coil?
A current circulating in a hollow copper coil (solenoid) produces a magnetic field equal to the permeability times the turns density times the current. B = μ x n x I * B is the magnetic field measured in Tesla * μ is the relative permeability of the solenoid's core which is air in this example and have a value approximated to 1.25663706E-6 * n is the turns density which equals the number of turns divided by the solenoid length n = N/L where L is measured in meters. * I is the current flowing within the solenoid and measured in Amperes
What shape has a perimeter of 6 units?
Any shape can have a perimeter of 6 units, depending on what those units are.
What are the properties of magnetic fields?
They always form a closed loop. They always start from the north pole and ends in the south pole. They never intersect each other. Magnetic lines of forces that are parallel to each other and are in the same direction repel each other.
Area of rectangle perimeter 32 units width 6 units?
The area of a rectangle with a perimeter of 32 units and a width of 6 units the area is 80 square units.Improved Answer:-Area = 6*10 = 60 square unitsPerimeter = 6+6+10+10 = 32 units
What is the area of a rectangle if the length is 6 units and a width of 4 units?
It is: 6*4 = 24 square units
What is the area of a right triangle if the legs are 6 and 13 units long?
area = ½ × base × height = ½ × 6 units × 13 units = 39 units²
